1375621932 has 24 divisors (see below), whose sum is σ = 3233217456. Its totient is φ = 455193088.

The previous prime is 1375621921. The next prime is 1375621937. The reversal of 1375621932 is 2391265731.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1375621937) 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 7 ways as a sum of consecutive naturals, for example, 416733 + ... + 420020.

It is an arithmetic number, because the mean of its divisors is an integer number (134717394).

Almost surely, 2^1375621932 is an apocalyptic number.

1375621932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1375621932 is an abundant number, since it is smaller than the sum of its proper divisors (1857595524).

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

1375621932 is a wasteful number, since it uses less digits than its factorization.

1375621932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836897 (or 836895 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 1375621932 is about 37089.3776167786. The cubic root of 1375621932 is about 1112.1576763024.

The spelling of 1375621932 in words is "one billion, three hundred seventy-five million, six hundred twenty-one thousand, nine hundred thirty-two".