2216975400 has 96 divisors (see below), whose sum is σ = 7636267200. Its totient is φ = 591192000.

The previous prime is 2216975393. The next prime is 2216975413. The reversal of 2216975400 is 45796122.

2216975400 is a `hidden beast` number, since 2 + 21 + 6 + 97 + 540 + 0 = 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, 199876 + ... + 210675.

It is an arithmetic number, because the mean of its divisors is an integer number (79544450).

Almost surely, 2^2216975400 is an apocalyptic number.

2216975400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2216975400 is an abundant number, since it is smaller than the sum of its proper divisors (5419291800).

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

2216975400 is a wasteful number, since it uses less digits than its factorization.

2216975400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410576 (or 410561 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2216975400 is about 47084.7682377221. The cubic root of 2216975400 is about 1303.9280403037.

The spelling of 2216975400 in words is "two billion, two hundred sixteen million, nine hundred seventy-five thousand, four hundred".