820373424 has 40 divisors (see below), whose sum is σ = 2282322672. Its totient is φ = 252422400.

The previous prime is 820373423. The next prime is 820373441. The reversal of 820373424 is 424373028.

It is not an unprimeable number, because it can be changed into a prime (820373423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656727 + ... + 657974.

Almost surely, 2^820373424 is an apocalyptic number.

It is an amenable number.

820373424 is an abundant number, since it is smaller than the sum of its proper divisors (1461949248).

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

820373424 is a wasteful number, since it uses less digits than its factorization.

820373424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314725 (or 1314719 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 820373424 is about 28642.1616502666. The cubic root of 820373424 is about 936.1322225365.

The spelling of 820373424 in words is "eight hundred twenty million, three hundred seventy-three thousand, four hundred twenty-four".