1022775264 has 72 divisors (see below), whose sum is σ = 3324026160. Its totient is φ = 292220928.

The previous prime is 1022775241. The next prime is 1022775283. The reversal of 1022775264 is 4625772201.

It is a happy number.

1022775264 is a `hidden beast` number, since 102 + 27 + 7 + 526 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251649 + ... + 255680.

It is an arithmetic number, because the mean of its divisors is an integer number (46167030).

Almost surely, 2^1022775264 is an apocalyptic number.

1022775264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1022775264 is an abundant number, since it is smaller than the sum of its proper divisors (2301250896).

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

1022775264 is a wasteful number, since it uses less digits than its factorization.

1022775264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507352 (or 507341 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 1022775264 is about 31980.8577746126. The cubic root of 1022775264 is about 1007.5348382849.

It can be divided in two parts, 10227 and 75264, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 1022775264 in words is "one billion, twenty-two million, seven hundred seventy-five thousand, two hundred sixty-four".