1339634972 has 24 divisors (see below), whose sum is σ = 2559288816. Its totient is φ = 609821568.

The previous prime is 1339634963. The next prime is 1339635007. The reversal of 1339634972 is 2794369331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172658 + ... + 180249.

It is an arithmetic number, because the mean of its divisors is an integer number (106637034).

Almost surely, 2^1339634972 is an apocalyptic number.

It is an amenable number.

1339634972 is a deficient number, since it is larger than the sum of its proper divisors (1219653844).

1339634972 is a wasteful number, since it uses less digits than its factorization.

1339634972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352997 (or 352995 counting only the distinct ones).

The product of its digits is 734832, while the sum is 47.

The square root of 1339634972 is about 36601.0241933201. The cubic root of 1339634972 is about 1102.3736544488.

The spelling of 1339634972 in words is "one billion, three hundred thirty-nine million, six hundred thirty-four thousand, nine hundred seventy-two".