99420038 has 16 divisors (see below), whose sum is σ = 154383360. Its totient is φ = 47968200.

The previous prime is 99420037. The next prime is 99420043. The reversal of 99420038 is 83002499.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99420037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21383 + ... + 25613.

It is an arithmetic number, because the mean of its divisors is an integer number (9648960).

Almost surely, 2^99420038 is an apocalyptic number.

99420038 is a deficient number, since it is larger than the sum of its proper divisors (54963322).

99420038 is a wasteful number, since it uses less digits than its factorization.

99420038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4643.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 99420038 is about 9970.9597331450. The cubic root of 99420038 is about 463.2598280072.

The spelling of 99420038 in words is "ninety-nine million, four hundred twenty thousand, thirty-eight".