1373973720 has 96 divisors (see below), whose sum is σ = 4794908400. Its totient is φ = 314049792.

The previous prime is 1373973707. The next prime is 1373973763. The reversal of 1373973720 is 273793731.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110955 + ... + 122714.

Almost surely, 2^1373973720 is an apocalyptic number.

1373973720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373973720 is an abundant number, since it is smaller than the sum of its proper divisors (3420934680).

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

1373973720 is a wasteful number, since it uses less digits than its factorization.

1373973720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233697 (or 233686 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 42.

The square root of 1373973720 is about 37067.1514956302. The cubic root of 1373973720 is about 1111.7133186932.

The spelling of 1373973720 in words is "one billion, three hundred seventy-three million, nine hundred seventy-three thousand, seven hundred twenty".