308949120 has 256 divisors, whose sum is σ = 1153008000. Its totient is φ = 77967360.

The previous prime is 308949097. The next prime is 308949163. The reversal of 308949120 is 21949803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327850 + ... + 328790.

Almost surely, 2^308949120 is an apocalyptic number.

308949120 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 308949120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576504000).

308949120 is an abundant number, since it is smaller than the sum of its proper divisors (844058880).

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

308949120 is a wasteful number, since it uses less digits than its factorization.

308949120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 308949120 is about 17576.9485406313. The cubic root of 308949120 is about 676.0243213359.

The spelling of 308949120 in words is "three hundred eight million, nine hundred forty-nine thousand, one hundred twenty".