916455331 has 24 divisors (see below), whose sum is σ = 1039708880. Its totient is φ = 806604480.

The previous prime is 916455313. The next prime is 916455377. The reversal of 916455331 is 133554619.

It is a happy number.

It is not a de Polignac number, because 916455331 - 2⁷ = 916455203 is a prime.

It is a super-2 number, since 2×916455331² = 1679780747436639122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (916455301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1239760 + ... + 1240498.

Almost surely, 2^916455331 is an apocalyptic number.

916455331 is a deficient number, since it is larger than the sum of its proper divisors (123253549).

916455331 is a wasteful number, since it uses less digits than its factorization.

916455331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1064 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 916455331 is about 30273.0132461240. The cubic root of 916455331 is about 971.3381223796.

The spelling of 916455331 in words is "nine hundred sixteen million, four hundred fifty-five thousand, three hundred thirty-one".