1264136970 has 64 divisors (see below), whose sum is σ = 3149435520. Its totient is φ = 324350208.

The previous prime is 1264136959. The next prime is 1264137019. The reversal of 1264136970 is 796314621.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264724 + ... + 269456.

It is an arithmetic number, because the mean of its divisors is an integer number (49209930).

Almost surely, 2^1264136970 is an apocalyptic number.

1264136970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264136970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1574717760).

1264136970 is an abundant number, since it is smaller than the sum of its proper divisors (1885298550).

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

1264136970 is a wasteful number, since it uses less digits than its factorization.

1264136970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1264136970 is about 35554.7039082032. The cubic root of 1264136970 is about 1081.2630883956.

The spelling of 1264136970 in words is "one billion, two hundred sixty-four million, one hundred thirty-six thousand, nine hundred seventy".