1380353631 has 16 divisors (see below), whose sum is σ = 1876232064. Its totient is φ = 902477664.

The previous prime is 1380353627. The next prime is 1380353657. The reversal of 1380353631 is 1363530831.

It is not a de Polignac number, because 1380353631 - 2² = 1380353627 is a prime.

It is a super-2 number, since 2×1380353631² = 3810752293229768322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1380353592 and 1380353601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380353231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30501 + ... + 60753.

It is an arithmetic number, because the mean of its divisors is an integer number (117264504).

Almost surely, 2^1380353631 is an apocalyptic number.

1380353631 is a deficient number, since it is larger than the sum of its proper divisors (495878433).

1380353631 is a wasteful number, since it uses less digits than its factorization.

1380353631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30550.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1380353631 is about 37153.1106503883. The cubic root of 1380353631 is about 1113.4313724865.

The spelling of 1380353631 in words is "one billion, three hundred eighty million, three hundred fifty-three thousand, six hundred thirty-one".