1373852520 has 96 divisors (see below), whose sum is σ = 4518914400. Its totient is φ = 361938816.

The previous prime is 1373852503. The next prime is 1373852533. The reversal of 1373852520 is 252583731.

It is a happy number.

1373852520 is a `hidden beast` number, since 13 + 73 + 8 + 52 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 6891 + ... + 52869.

It is an arithmetic number, because the mean of its divisors is an integer number (47072025).

Almost surely, 2^1373852520 is an apocalyptic number.

1373852520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1373852520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2259457200).

1373852520 is an abundant number, since it is smaller than the sum of its proper divisors (3145061880).

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

1373852520 is a wasteful number, since it uses less digits than its factorization.

1373852520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46079 (or 46072 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1373852520 is about 37065.5165888727. The cubic root of 1373852520 is about 1111.6806291751.

The spelling of 1373852520 in words is "one billion, three hundred seventy-three million, eight hundred fifty-two thousand, five hundred twenty".