1375381774 has 32 divisors (see below), whose sum is σ = 2342301696. Its totient is φ = 601227360.

The previous prime is 1375381697. The next prime is 1375381793. The reversal of 1375381774 is 4771835731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19729 + ... + 56035.

It is an arithmetic number, because the mean of its divisors is an integer number (73196928).

Almost surely, 2^1375381774 is an apocalyptic number.

1375381774 is a deficient number, since it is larger than the sum of its proper divisors (966919922).

1375381774 is a wasteful number, since it uses less digits than its factorization.

1375381774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36400.

The product of its digits is 493920, while the sum is 46.

The square root of 1375381774 is about 37086.1399177644. The cubic root of 1375381774 is about 1112.0929518551.

The spelling of 1375381774 in words is "one billion, three hundred seventy-five million, three hundred eighty-one thousand, seven hundred seventy-four".