99309490400 has 72 divisors (see below), whose sum is σ = 246057923160. Its totient is φ = 39130882560.

The previous prime is 99309490391. The next prime is 99309490409. The reversal of 99309490400 is 409490399.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99309490391) and next prime (99309490409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99309490409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 872795 + ... + 979994.

It is an arithmetic number, because the mean of its divisors is an integer number (3417471155).

Almost surely, 2^99309490400 is an apocalyptic number.

It is an amenable number.

99309490400 is an abundant number, since it is smaller than the sum of its proper divisors (146748432760).

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

99309490400 is a wasteful number, since it uses less digits than its factorization.

99309490400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852876 (or 1852863 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

The spelling of 99309490400 in words is "ninety-nine billion, three hundred nine million, four hundred ninety thousand, four hundred".