1264987630 has 32 divisors (see below), whose sum is σ = 2312699040. Its totient is φ = 498115200.

The previous prime is 1264987613. The next prime is 1264987673. The reversal of 1264987630 is 367894621.

1264987630 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 177292 + ... + 184288.

It is an arithmetic number, because the mean of its divisors is an integer number (72271845).

Almost surely, 2^1264987630 is an apocalyptic number.

1264987630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264987630 is a deficient number, since it is larger than the sum of its proper divisors (1047711410).

1264987630 is a wasteful number, since it uses less digits than its factorization.

1264987630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7284.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1264987630 is about 35566.6645891908. The cubic root of 1264987630 is about 1081.5055676638.

The spelling of 1264987630 in words is "one billion, two hundred sixty-four million, nine hundred eighty-seven thousand, six hundred thirty".