1380921292 has 48 divisors (see below), whose sum is σ = 2581770240. Its totient is φ = 644438592.

The previous prime is 1380921277. The next prime is 1380921293. The reversal of 1380921292 is 2921290831.

It is a super-2 number, since 2×1380921292² = 3813887229397898528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1380921293) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1669383 + ... + 1670209.

It is an arithmetic number, because the mean of its divisors is an integer number (53786880).

Almost surely, 2^1380921292 is an apocalyptic number.

It is an amenable number.

1380921292 is a deficient number, since it is larger than the sum of its proper divisors (1200848948).

1380921292 is a wasteful number, since it uses less digits than its factorization.

1380921292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1380921292 is about 37160.7493465888. The cubic root of 1380921292 is about 1113.5839819168.

The spelling of 1380921292 in words is "one billion, three hundred eighty million, nine hundred twenty-one thousand, two hundred ninety-two".