1392761344 has 40 divisors (see below), whose sum is σ = 2996878500. Its totient is φ = 642809856.

The previous prime is 1392761311. The next prime is 1392761371. The reversal of 1392761344 is 4431672931.

It can be written as a sum of positive squares in 2 ways, for example, as 1360134400 + 32626944 = 36880^2 + 5712^2 .

It is a super-2 number, since 2×1392761344² = 3879568322681372672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1392761297 and 1392761306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97969 + ... + 111280.

Almost surely, 2^1392761344 is an apocalyptic number.

It is an amenable number.

1392761344 is an abundant number, since it is smaller than the sum of its proper divisors (1604117156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1392761344 is an equidigital number, since it uses as much as digits as its factorization.

1392761344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209280 (or 209264 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 1392761344 is about 37319.7178981835. The cubic root of 1392761344 is about 1116.7575608594.

The spelling of 1392761344 in words is "one billion, three hundred ninety-two million, seven hundred sixty-one thousand, three hundred forty-four".