1339920694 has 32 divisors (see below), whose sum is σ = 2333237760. Its totient is φ = 565227072.

The previous prime is 1339920689. The next prime is 1339920707. The reversal of 1339920694 is 4960299331.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 656127 + ... + 658165.

It is an arithmetic number, because the mean of its divisors is an integer number (72913680).

Almost surely, 2^1339920694 is an apocalyptic number.

1339920694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1339920694 is a deficient number, since it is larger than the sum of its proper divisors (993317066).

1339920694 is a wasteful number, since it uses less digits than its factorization.

1339920694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 1339920694 is about 36604.9271820065. The cubic root of 1339920694 is about 1102.4520215717.

The spelling of 1339920694 in words is "one billion, three hundred thirty-nine million, nine hundred twenty thousand, six hundred ninety-four".