2196722400 has 72 divisors (see below), whose sum is σ = 7150339224. Its totient is φ = 585792000.

The previous prime is 2196722393. The next prime is 2196722401. The reversal of 2196722400 is 42276912.

It is a super-4 number, since 4×2196722400⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196722401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455251 + ... + 460050.

It is an arithmetic number, because the mean of its divisors is an integer number (99310267).

Almost surely, 2^2196722400 is an apocalyptic number.

2196722400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2196722400 is an abundant number, since it is smaller than the sum of its proper divisors (4953616824).

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

2196722400 is a wasteful number, since it uses less digits than its factorization.

2196722400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915324 (or 915311 counting only the distinct ones).

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

The square root of 2196722400 is about 46869.2052418216. The cubic root of 2196722400 is about 1299.9452442421.

The spelling of 2196722400 in words is "two billion, one hundred ninety-six million, seven hundred twenty-two thousand, four hundred".