1396731064 has 16 divisors (see below), whose sum is σ = 2630617920. Its totient is φ = 695232960.

The previous prime is 1396731047. The next prime is 1396731073. The reversal of 1396731064 is 4601376931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389677 + ... + 393244.

It is an arithmetic number, because the mean of its divisors is an integer number (164413620).

Almost surely, 2^1396731064 is an apocalyptic number.

It is an amenable number.

1396731064 is a deficient number, since it is larger than the sum of its proper divisors (1233886856).

1396731064 is a wasteful number, since it uses less digits than its factorization.

1396731064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783150 (or 783146 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 1396731064 is about 37372.8653437223. The cubic root of 1396731064 is about 1117.8175676760.

The spelling of 1396731064 in words is "one billion, three hundred ninety-six million, seven hundred thirty-one thousand, sixty-four".