1264027516 has 12 divisors (see below), whose sum is σ = 2328471880. Its totient is φ = 598749840.

The previous prime is 1264027489. The next prime is 1264027529. The reversal of 1264027516 is 6157204621.

It is a super-2 number, since 2×1264027516² = 3195531122410260512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8315895 + ... + 8316046.

Almost surely, 2^1264027516 is an apocalyptic number.

It is an amenable number.

1264027516 is a deficient number, since it is larger than the sum of its proper divisors (1064444364).

1264027516 is a wasteful number, since it uses less digits than its factorization.

1264027516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16631964 (or 16631962 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1264027516 is about 35553.1646411399. The cubic root of 1264027516 is about 1081.2318808106.

The spelling of 1264027516 in words is "one billion, two hundred sixty-four million, twenty-seven thousand, five hundred sixteen".