331894761 has 16 divisors (see below), whose sum is σ = 503746560. Its totient is φ = 192402320.

The previous prime is 331894741. The next prime is 331894799. The reversal of 331894761 is 167498133.

It is not a de Polignac number, because 331894761 - 2⁵ = 331894729 is a prime.

It is a super-2 number, since 2×331894761² = 220308264758494242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (331894741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217881 + ... + 219398.

It is an arithmetic number, because the mean of its divisors is an integer number (31484160).

Almost surely, 2^331894761 is an apocalyptic number.

It is an amenable number.

331894761 is a deficient number, since it is larger than the sum of its proper divisors (171851799).

331894761 is a wasteful number, since it uses less digits than its factorization.

331894761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437316.

The product of its digits is 108864, while the sum is 42.

The square root of 331894761 is about 18217.9790591602. The cubic root of 331894761 is about 692.3623856496.

It can be divided in two parts, 33189 and 4761, that added together give a triangular number (37950 = T₂₇₅).

The spelling of 331894761 in words is "three hundred thirty-one million, eight hundred ninety-four thousand, seven hundred sixty-one".