99404256 has 96 divisors (see below), whose sum is σ = 303948288. Its totient is φ = 27855360.

The previous prime is 99404233. The next prime is 99404267. The reversal of 99404256 is 65240499.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×99404256² = 19762412221827072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34221 + ... + 37011.

It is an arithmetic number, because the mean of its divisors is an integer number (3166128).

Almost surely, 2^99404256 is an apocalyptic number.

99404256 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99404256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151974144).

99404256 is an abundant number, since it is smaller than the sum of its proper divisors (204544032).

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

99404256 is a wasteful number, since it uses less digits than its factorization.

99404256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864 (or 2856 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 99404256 is about 9970.1683034942. The cubic root of 99404256 is about 463.2353139902.

It can be divided in two parts, 9940 and 4256, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 99404256 in words is "ninety-nine million, four hundred four thousand, two hundred fifty-six".