99019404 has 36 divisors (see below), whose sum is σ = 273054600. Its totient is φ = 30005760.

The previous prime is 99019397. The next prime is 99019421. The reversal of 99019404 is 40491099.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124629 + ... + 125420.

It is an arithmetic number, because the mean of its divisors is an integer number (7584850).

Almost surely, 2^99019404 is an apocalyptic number.

It is an amenable number.

99019404 is an abundant number, since it is smaller than the sum of its proper divisors (174035196).

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

99019404 is a wasteful number, since it uses less digits than its factorization.

99019404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250070 (or 250065 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 99019404 is about 9950.8494109799. The cubic root of 99019404 is about 462.6367225686.

The spelling of 99019404 in words is "ninety-nine million, nineteen thousand, four hundred four".