2021398176 has 72 divisors (see below), whose sum is σ = 6172498080. Its totient is φ = 577540992.

The previous prime is 2021398157. The next prime is 2021398207. The reversal of 2021398176 is 6718931202.

It is a super-2 number, since 2×2021398176² = 8172101171872253952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210156 + ... + 219563.

It is an arithmetic number, because the mean of its divisors is an integer number (85729140).

Almost surely, 2^2021398176 is an apocalyptic number.

It is an amenable number.

2021398176 is an abundant number, since it is smaller than the sum of its proper divisors (4151099904).

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

2021398176 is a wasteful number, since it uses less digits than its factorization.

2021398176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429746 (or 429731 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2021398176 is about 44959.9619216921. The cubic root of 2021398176 is about 1264.3984550032.

The spelling of 2021398176 in words is "two billion, twenty-one million, three hundred ninety-eight thousand, one hundred seventy-six".