307830352 has 20 divisors (see below), whose sum is σ = 603125460. Its totient is φ = 152185088.

The previous prime is 307830349. The next prime is 307830353. The reversal of 307830352 is 253038703.

It can be written as a sum of positive squares in 2 ways, for example, as 61842496 + 245987856 = 7864^2 + 15684^2 .

It is a super-2 number, since 2×307830352² = 189519051224887808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307830353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106663 + ... + 109510.

It is an arithmetic number, because the mean of its divisors is an integer number (30156273).

Almost surely, 2^307830352 is an apocalyptic number.

It is an amenable number.

307830352 is a deficient number, since it is larger than the sum of its proper divisors (295295108).

307830352 is a wasteful number, since it uses less digits than its factorization.

307830352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216270 (or 216264 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 307830352 is about 17545.0948130809. The cubic root of 307830352 is about 675.2073268935.

The spelling of 307830352 in words is "three hundred seven million, eight hundred thirty thousand, three hundred fifty-two".