1026555264 has 96 divisors (see below), whose sum is σ = 3376049040. Its totient is φ = 293299200.

The previous prime is 1026555241. The next prime is 1026555289. The reversal of 1026555264 is 4625556201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1026555264² = 2107631420092219392, which contains 22 as substring.

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, 55587 + ... + 71714.

Almost surely, 2^1026555264 is an apocalyptic number.

1026555264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1026555264 is an abundant number, since it is smaller than the sum of its proper divisors (2349493776).

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

1026555264 is a wasteful number, since it uses less digits than its factorization.

1026555264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127328 (or 127313 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 1026555264 is about 32039.9011234429. The cubic root of 1026555264 is about 1008.7745369763.

It can be divided in two parts, 10265552 and 64, that added together give a square (10265616 = 3204²).

The spelling of 1026555264 in words is "one billion, twenty-six million, five hundred fifty-five thousand, two hundred sixty-four".