1373949594 has 32 divisors (see below), whose sum is σ = 3059400000. Its totient is φ = 457056432.

The previous prime is 1373949589. The next prime is 1373949611. The reversal of 1373949594 is 4959493731.

It is a happy number.

1373949594 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 9 + 49 + 594 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1373949594.

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, 1452 + ... + 52440.

It is an arithmetic number, because the mean of its divisors is an integer number (95606250).

Almost surely, 2^1373949594 is an apocalyptic number.

1373949594 is an abundant number, since it is smaller than the sum of its proper divisors (1685450406).

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

1373949594 is a wasteful number, since it uses less digits than its factorization.

1373949594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51499 (or 51493 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 1373949594 is about 37066.8260578108. The cubic root of 1373949594 is about 1111.7068116904.

The spelling of 1373949594 in words is "one billion, three hundred seventy-three million, nine hundred forty-nine thousand, five hundred ninety-four".