331352402 has 8 divisors (see below), whose sum is σ = 503837436. Its totient is φ = 163406592.

The previous prime is 331352401. The next prime is 331352407. The reversal of 331352402 is 204253133.

It can be written as a sum of positive squares in 2 ways, for example, as 312264241 + 19088161 = 17671^2 + 4369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×331352402² = 219588828622339208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331352401) 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, 1134623 + ... + 1134914.

Almost surely, 2^331352402 is an apocalyptic number.

331352402 is a deficient number, since it is larger than the sum of its proper divisors (172485034).

331352402 is a wasteful number, since it uses less digits than its factorization.

331352402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269612.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 331352402 is about 18203.0877051120. The cubic root of 331352402 is about 691.9850434470.

The spelling of 331352402 in words is "three hundred thirty-one million, three hundred fifty-two thousand, four hundred two".