307612428 has 12 divisors (see below), whose sum is σ = 717762360. Its totient is φ = 102537472.

The previous prime is 307612423. The next prime is 307612429. The reversal of 307612428 is 824216703.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (307612423) 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 3 ways as a sum of consecutive naturals, for example, 12817173 + ... + 12817196.

It is an arithmetic number, because the mean of its divisors is an integer number (59813530).

Almost surely, 2^307612428 is an apocalyptic number.

It is an amenable number.

307612428 is an abundant number, since it is smaller than the sum of its proper divisors (410149932).

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

307612428 is a wasteful number, since it uses less digits than its factorization.

307612428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25634376 (or 25634374 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 307612428 is about 17538.8833167907. The cubic root of 307612428 is about 675.0479548920.

The spelling of 307612428 in words is "three hundred seven million, six hundred twelve thousand, four hundred twenty-eight".