816264 has 32 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 272016.

The previous prime is 816251. The next prime is 816271. The reversal of 816264 is 462618.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674 + ... + 2105.

It is an arithmetic number, because the mean of its divisors is an integer number (70875).

2⁸¹⁶²⁶⁴ is an apocalyptic number.

It is an amenable number.

816264 is an abundant number, since it is smaller than the sum of its proper divisors (1451736).

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

816264 is a wasteful number, since it uses less digits than its factorization.

816264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3794 (or 3784 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 816264 is about 903.4732978899. The cubic root of 816264 is about 93.4566510523.

The spelling of 816264 in words is "eight hundred sixteen thousand, two hundred sixty-four".