1383392972 has 24 divisors (see below), whose sum is σ = 2670757152. Its totient is φ = 622915200.

The previous prime is 1383392957. The next prime is 1383392987. The reversal of 1383392972 is 2792933831.

It is an interprime number because it is at equal distance from previous prime (1383392957) and next prime (1383392987).

It is a super-2 number, since 2×1383392972² = 3827552229957985568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 322304 + ... + 326567.

It is an arithmetic number, because the mean of its divisors is an integer number (111281548).

Almost surely, 2^1383392972 is an apocalyptic number.

It is an amenable number.

1383392972 is a deficient number, since it is larger than the sum of its proper divisors (1287364180).

1383392972 is a wasteful number, since it uses less digits than its factorization.

1383392972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648929 (or 648927 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 1383392972 is about 37193.9910738280. The cubic root of 1383392972 is about 1114.2479789012.

The spelling of 1383392972 in words is "one billion, three hundred eighty-three million, three hundred ninety-two thousand, nine hundred seventy-two".