1375391634 has 16 divisors (see below), whose sum is σ = 2751379488. Its totient is φ = 458364512.

The previous prime is 1375391629. The next prime is 1375391653. The reversal of 1375391634 is 4361935731.

It is a happy number.

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, 8614 + ... + 53150.

It is an arithmetic number, because the mean of its divisors is an integer number (171961218).

Almost surely, 2^1375391634 is an apocalyptic number.

1375391634 is an abundant number, since it is smaller than the sum of its proper divisors (1375987854).

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

1375391634 is a wasteful number, since it uses less digits than its factorization.

1375391634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49689.

The product of its digits is 204120, while the sum is 42.

The square root of 1375391634 is about 37086.2728512856. The cubic root of 1375391634 is about 1112.0956093500.

The spelling of 1375391634 in words is "one billion, three hundred seventy-five million, three hundred ninety-one thousand, six hundred thirty-four".