1390973079 has 32 divisors (see below), whose sum is σ = 1946280960. Its totient is φ = 882807552.

The previous prime is 1390973063. The next prime is 1390973083. The reversal of 1390973079 is 9703790931.

It is not a de Polignac number, because 1390973079 - 2⁴ = 1390973063 is a prime.

It is a super-2 number, since 2×1390973079² = 3869612213005480482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390973029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1016854 + ... + 1018220.

It is an arithmetic number, because the mean of its divisors is an integer number (60821280).

Almost surely, 2^1390973079 is an apocalyptic number.

1390973079 is a deficient number, since it is larger than the sum of its proper divisors (555307881).

1390973079 is a wasteful number, since it uses less digits than its factorization.

1390973079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599.

The product of its (nonzero) digits is 321489, while the sum is 48.

The square root of 1390973079 is about 37295.7514872673. The cubic root of 1390973079 is about 1116.2793947568.

The spelling of 1390973079 in words is "one billion, three hundred ninety million, nine hundred seventy-three thousand, seventy-nine".