99136404 has 36 divisors (see below), whose sum is σ = 250990740. Its totient is φ = 32993280.

The previous prime is 99136399. The next prime is 99136421. The reversal of 99136404 is 40463199.

99136404 is a `hidden beast` number, since 9 + 9 + 1 + 3 + 640 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66096900 + 33039504 = 8130^2 + 5748^2 .

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 a congruent number.

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, 25894 + ... + 29474.

It is an arithmetic number, because the mean of its divisors is an integer number (6971965).

Almost surely, 2^99136404 is an apocalyptic number.

It is an amenable number.

99136404 is an abundant number, since it is smaller than the sum of its proper divisors (151854336).

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

99136404 is a wasteful number, since it uses less digits than its factorization.

99136404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360 (or 4355 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 99136404 is about 9956.7265705150. The cubic root of 99136404 is about 462.8188659640.

It can be divided in two parts, 99 and 136404, that added together give a triangular number (136503 = T₅₂₂).

The spelling of 99136404 in words is "ninety-nine million, one hundred thirty-six thousand, four hundred four".