1397413992 has 32 divisors (see below), whose sum is σ = 3762269280. Its totient is φ = 429973440.

The previous prime is 1397413949. The next prime is 1397414017. The reversal of 1397413992 is 2993147931.

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, 2239134 + ... + 2239757.

It is an arithmetic number, because the mean of its divisors is an integer number (117570915).

Almost surely, 2^1397413992 is an apocalyptic number.

1397413992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1397413992 is an abundant number, since it is smaller than the sum of its proper divisors (2364855288).

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

1397413992 is a wasteful number, since it uses less digits than its factorization.

1397413992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478913 (or 4478909 counting only the distinct ones).

The product of its digits is 367416, while the sum is 48.

The square root of 1397413992 is about 37382.0009095286. Note that the first 3 decimals coincide. The cubic root of 1397413992 is about 1117.9997226497. Note that the first 3 decimals are identical.

It can be divided in two parts, 13974 and 13992, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 1397413992 in words is "one billion, three hundred ninety-seven million, four hundred thirteen thousand, nine hundred ninety-two".