308924040 has 256 divisors, whose sum is σ = 1049241600. Its totient is φ = 72382464.

The previous prime is 308924027. The next prime is 308924041. The reversal of 308924040 is 40429803.

It is a happy number.

308924040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 308923989 and 308924007.

It is not an unprimeable number, because it can be changed into a prime (308924041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2254852 + ... + 2254988.

It is an arithmetic number, because the mean of its divisors is an integer number (4098600).

Almost surely, 2^308924040 is an apocalyptic number.

308924040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308924040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524620800).

308924040 is an abundant number, since it is smaller than the sum of its proper divisors (740317560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308924040 is a wasteful number, since it uses less digits than its factorization.

308924040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 308924040 is about 17576.2350917368. The cubic root of 308924040 is about 676.0060279798.

The spelling of 308924040 in words is "three hundred eight million, nine hundred twenty-four thousand, forty".