501373820 has 12 divisors (see below), whose sum is σ = 1052885064. Its totient is φ = 200549520.

The previous prime is 501373787. The next prime is 501373841. The reversal of 501373820 is 28373105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12534326 + ... + 12534365.

It is an arithmetic number, because the mean of its divisors is an integer number (87740422).

Almost surely, 2^501373820 is an apocalyptic number.

It is an amenable number.

501373820 is an abundant number, since it is smaller than the sum of its proper divisors (551511244).

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

501373820 is a wasteful number, since it uses less digits than its factorization.

501373820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25068700 (or 25068698 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 501373820 is about 22391.3782514610. The cubic root of 501373820 is about 794.4267956516.

The spelling of 501373820 in words is "five hundred one million, three hundred seventy-three thousand, eight hundred twenty".