1392767980 has 24 divisors (see below), whose sum is σ = 2925857088. Its totient is φ = 556908288.

The previous prime is 1392767953. The next prime is 1392768017. The reversal of 1392767980 is 897672931.

It is a super-2 number, since 2×1392767980² = 3879605292226560800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53517 + ... + 75163.

It is an arithmetic number, because the mean of its divisors is an integer number (121910712).

Almost surely, 2^1392767980 is an apocalyptic number.

1392767980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1392767980 is an abundant number, since it is smaller than the sum of its proper divisors (1533089108).

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

1392767980 is a wasteful number, since it uses less digits than its factorization.

1392767980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24873 (or 24871 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 1392767980 is about 37319.8068055021. The cubic root of 1392767980 is about 1116.7593345041.

The spelling of 1392767980 in words is "one billion, three hundred ninety-two million, seven hundred sixty-seven thousand, nine hundred eighty".