1264485936 has 80 divisors (see below), whose sum is σ = 3737332224. Its totient is φ = 360886272.

The previous prime is 1264485851. The next prime is 1264485941. The reversal of 1264485936 is 6395844621.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457936 + ... + 460688.

Almost surely, 2^1264485936 is an apocalyptic number.

1264485936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1264485936 is an abundant number, since it is smaller than the sum of its proper divisors (2472846288).

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

1264485936 is a wasteful number, since it uses less digits than its factorization.

1264485936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138 (or 4132 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 1264485936 is about 35559.6110214946. The cubic root of 1264485936 is about 1081.3625737491.

The spelling of 1264485936 in words is "one billion, two hundred sixty-four million, four hundred eighty-five thousand, nine hundred thirty-six".