1390291696 has 10 divisors (see below), whose sum is σ = 2693690192. Its totient is φ = 695145840.

The previous prime is 1390291681. The next prime is 1390291699. The reversal of 1390291696 is 6961920931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390291699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43446600 + ... + 43446631.

Almost surely, 2^1390291696 is an apocalyptic number.

1390291696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1390291696 is a deficient number, since it is larger than the sum of its proper divisors (1303398496).

1390291696 is an equidigital number, since it uses as much as digits as its factorization.

1390291696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86893239 (or 86893233 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 1390291696 is about 37286.6155074445. The cubic root of 1390291696 is about 1116.0970911962.

The spelling of 1390291696 in words is "one billion, three hundred ninety million, two hundred ninety-one thousand, six hundred ninety-six".