1264390930 has 16 divisors (see below), whose sum is σ = 2482804224. Its totient is φ = 459778480.

The previous prime is 1264390927. The next prime is 1264390931. The reversal of 1264390930 is 390934621.

It is a self number, because there is not a number n which added to its sum of digits gives 1264390930.

It is not an unprimeable number, because it can be changed into a prime (1264390931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5747122 + ... + 5747341.

It is an arithmetic number, because the mean of its divisors is an integer number (155175264).

Almost surely, 2^1264390930 is an apocalyptic number.

1264390930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264390930 is a deficient number, since it is larger than the sum of its proper divisors (1218413294).

1264390930 is a wasteful number, since it uses less digits than its factorization.

1264390930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11494481.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 1264390930 is about 35558.2751268956. The cubic root of 1264390930 is about 1081.3354906732.

The spelling of 1264390930 in words is "one billion, two hundred sixty-four million, three hundred ninety thousand, nine hundred thirty".