307453128 has 64 divisors (see below), whose sum is σ = 816696000. Its totient is φ = 96268032.

The previous prime is 307453123. The next prime is 307453141. The reversal of 307453128 is 821354703.

307453128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (307453123) 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 15 ways as a sum of consecutive naturals, for example, 19783 + ... + 31721.

It is an arithmetic number, because the mean of its divisors is an integer number (12760875).

Almost surely, 2^307453128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307453128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408348000).

307453128 is an abundant number, since it is smaller than the sum of its proper divisors (509242872).

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

307453128 is a wasteful number, since it uses less digits than its factorization.

307453128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12014 (or 12010 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 307453128 is about 17534.3413905399. The cubic root of 307453128 is about 674.9314081193.

The spelling of 307453128 in words is "three hundred seven million, four hundred fifty-three thousand, one hundred twenty-eight".