2197396800 has 126 divisors (see below), whose sum is σ = 7810118238. Its totient is φ = 585968640.

The previous prime is 2197396769. The next prime is 2197396813. The reversal of 2197396800 is 86937912.

It can be written as a sum of positive squares in 3 ways, for example, as 122412096 + 2074984704 = 11064^2 + 45552^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61899 + ... + 90698.

Almost surely, 2^2197396800 is an apocalyptic number.

2197396800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197396800 is an abundant number, since it is smaller than the sum of its proper divisors (5612721438).

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

2197396800 is a wasteful number, since it uses less digits than its factorization.

2197396800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152625 (or 152607 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 2197396800 is about 46876.3991791178. The cubic root of 2197396800 is about 1300.0782595885.

The spelling of 2197396800 in words is "two billion, one hundred ninety-seven million, three hundred ninety-six thousand, eight hundred".