99355440 has 40 divisors (see below), whose sum is σ = 308002608. Its totient is φ = 26494720.

The previous prime is 99355411. The next prime is 99355447. The reversal of 99355440 is 4455399.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (99355447) 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, 206751 + ... + 207230.

Almost surely, 2^99355440 is an apocalyptic number.

It is an amenable number.

99355440 is an abundant number, since it is smaller than the sum of its proper divisors (208647168).

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

99355440 is a wasteful number, since it uses less digits than its factorization.

99355440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413997 (or 413991 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 99355440 is about 9967.7198997564. The cubic root of 99355440 is about 463.1594721746.

The spelling of 99355440 in words is "ninety-nine million, three hundred fifty-five thousand, four hundred forty".