99400490 has 32 divisors (see below), whose sum is σ = 205649280. Its totient is φ = 33885504.

The previous prime is 99400489. The next prime is 99400501. The reversal of 99400490 is 9400499.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99400490.

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, 8564 + ... + 16496.

It is an arithmetic number, because the mean of its divisors is an integer number (6426540).

Almost surely, 2^99400490 is an apocalyptic number.

99400490 is an abundant number, since it is smaller than the sum of its proper divisors (106248790).

99400490 is a wasteful number, since it uses less digits than its factorization.

99400490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 99400490 is about 9969.9794382937. The cubic root of 99400490 is about 463.2294639180.

The spelling of 99400490 in words is "ninety-nine million, four hundred thousand, four hundred ninety".