99455380 has 24 divisors (see below), whose sum is σ = 211800960. Its totient is φ = 39221280.

The previous prime is 99455357. The next prime is 99455383. The reversal of 99455380 is 8355499.

It is a happy number.

It is a super-2 number, since 2×99455380² = 19782745221888800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99455383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33600 + ... + 36439.

It is an arithmetic number, because the mean of its divisors is an integer number (8825040).

Almost surely, 2^99455380 is an apocalyptic number.

It is an amenable number.

99455380 is an abundant number, since it is smaller than the sum of its proper divisors (112345580).

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

99455380 is a wasteful number, since it uses less digits than its factorization.

99455380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70119 (or 70117 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 99455380 is about 9972.7318223243. The cubic root of 99455380 is about 463.3147149613.

The spelling of 99455380 in words is "ninety-nine million, four hundred fifty-five thousand, three hundred eighty".