8020397400 has 48 divisors (see below), whose sum is σ = 24863233800. Its totient is φ = 2138772480.

The previous prime is 8020397393. The next prime is 8020397417. The reversal of 8020397400 is 47930208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6683065 + ... + 6684264.

Almost surely, 2^8020397400 is an apocalyptic number.

It is an amenable number.

8020397400 is an abundant number, since it is smaller than the sum of its proper divisors (16842836400).

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

8020397400 is a wasteful number, since it uses less digits than its factorization.

8020397400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13367348 (or 13367339 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 8020397400 is about 89556.6714432822. The cubic root of 8020397400 is about 2001.6983407445.

The spelling of 8020397400 in words is "eight billion, twenty million, three hundred ninety-seven thousand, four hundred".