1392697056 has 48 divisors (see below), whose sum is σ = 3677005584. Its totient is φ = 461543424.

The previous prime is 1392697043. The next prime is 1392697063. The reversal of 1392697056 is 6507962931.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1392696996 and 1392697014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25321 + ... + 58536.

It is an arithmetic number, because the mean of its divisors is an integer number (76604283).

Almost surely, 2^1392697056 is an apocalyptic number.

1392697056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1392697056 is an abundant number, since it is smaller than the sum of its proper divisors (2284308528).

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

1392697056 is a wasteful number, since it uses less digits than its factorization.

1392697056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84043 (or 84035 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 1392697056 is about 37318.8565741235. The cubic root of 1392697056 is about 1116.7403779168.

The spelling of 1392697056 in words is "one billion, three hundred ninety-two million, six hundred ninety-seven thousand, fifty-six".