99400756 has 96 divisors (see below), whose sum is σ = 231211008. Its totient is φ = 36305280.

The previous prime is 99400711. The next prime is 99400757. The reversal of 99400756 is 65700499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99400757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259341 + ... + 259723.

It is an arithmetic number, because the mean of its divisors is an integer number (2408448).

Almost surely, 2^99400756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99400756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115605504).

99400756 is an abundant number, since it is smaller than the sum of its proper divisors (131810252).

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

99400756 is a wasteful number, since it uses less digits than its factorization.

99400756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 99400756 is about 9969.9927783324. The cubic root of 99400756 is about 463.2298771250.

The spelling of 99400756 in words is "ninety-nine million, four hundred thousand, seven hundred fifty-six".