308052540 has 72 divisors (see below), whose sum is σ = 935913888. Its totient is φ = 82016640.

The previous prime is 308052527. The next prime is 308052541. The reversal of 308052540 is 45250803.

308052540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308052541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176070 + ... + 177810.

It is an arithmetic number, because the mean of its divisors is an integer number (12998804).

Almost surely, 2^308052540 is an apocalyptic number.

308052540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

308052540 is an abundant number, since it is smaller than the sum of its proper divisors (627861348).

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

308052540 is a wasteful number, since it uses less digits than its factorization.

308052540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 308052540 is about 17551.4255831257. The cubic root of 308052540 is about 675.3697398202.

The spelling of 308052540 in words is "three hundred eight million, fifty-two thousand, five hundred forty".