99920422 has 16 divisors (see below), whose sum is σ = 171689472. Its totient is φ = 42723720.

The previous prime is 99920413. The next prime is 99920477. The reversal of 99920422 is 22402999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854 + ... + 14257.

It is an arithmetic number, because the mean of its divisors is an integer number (10730592).

Almost surely, 2^99920422 is an apocalyptic number.

99920422 is a deficient number, since it is larger than the sum of its proper divisors (71769050).

99920422 is a wasteful number, since it uses less digits than its factorization.

99920422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16563.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 99920422 is about 9996.0203081026. The cubic root of 99920422 is about 464.0357279019.

The spelling of 99920422 in words is "ninety-nine million, nine hundred twenty thousand, four hundred twenty-two".