307401864 has 128 divisors (see below), whose sum is σ = 962841600. Its totient is φ = 79453440.

The previous prime is 307401823. The next prime is 307401869. The reversal of 307401864 is 468104703.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (307401869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 733447 + ... + 733865.

It is an arithmetic number, because the mean of its divisors is an integer number (7522200).

Almost surely, 2^307401864 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 307401864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481420800).

307401864 is an abundant number, since it is smaller than the sum of its proper divisors (655439736).

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

307401864 is a wasteful number, since it uses less digits than its factorization.

307401864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 839 counting only the distinct ones).

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

The square root of 307401864 is about 17532.8795125045. The cubic root of 307401864 is about 674.8938938840.

The spelling of 307401864 in words is "three hundred seven million, four hundred one thousand, eight hundred sixty-four".