99022401 has 27 divisors (see below), whose sum is σ = 149189313. Its totient is φ = 63288360.

The previous prime is 99022369. The next prime is 99022447. The reversal of 99022401 is 10422099.

The square root of 99022401 is 9951.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 99022401 - 2⁵ = 99022369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99022601) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 925390 + ... + 925496.

Almost surely, 2^99022401 is an apocalyptic number.

99022401 is the 9951-st square number.

99022401 is the 4976-th centered octagonal number.

It is an amenable number.

99022401 is a deficient number, since it is larger than the sum of its proper divisors (50166912).

99022401 is a wasteful number, since it uses less digits than its factorization.

99022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The cubic root of 99022401 is about 462.6413900318.

Multiplying 99022401 by its product of nonzero digits (1296), we get a square (128333031696 = 358236²).

The spelling of 99022401 in words is "ninety-nine million, twenty-two thousand, four hundred one".