1373975040 has 80 divisors (see below), whose sum is σ = 4392451008. Its totient is φ = 366391296.

The previous prime is 1373975033. The next prime is 1373975059. The reversal of 1373975040 is 405793731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1373975040.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81772 + ... + 97131.

Almost surely, 2^1373975040 is an apocalyptic number.

1373975040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373975040 is an abundant number, since it is smaller than the sum of its proper divisors (3018475968).

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

1373975040 is an equidigital number, since it uses as much as digits as its factorization.

1373975040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178929 (or 178913 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 1373975040 is about 37067.1693011484. The cubic root of 1373975040 is about 1111.7136747071.

The spelling of 1373975040 in words is "one billion, three hundred seventy-three million, nine hundred seventy-five thousand, forty".