99407490 has 96 divisors (see below), whose sum is σ = 295353216. Its totient is φ = 20966400.

The previous prime is 99407467. The next prime is 99407513. The reversal of 99407490 is 9470499.

It is an interprime number because it is at equal distance from previous prime (99407467) and next prime (99407513).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34090 + ... + 36890.

It is an arithmetic number, because the mean of its divisors is an integer number (3076596).

Almost surely, 2^99407490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99407490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147676608).

99407490 is an abundant number, since it is smaller than the sum of its proper divisors (195945726).

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

99407490 is a wasteful number, since it uses less digits than its factorization.

99407490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 99407490 is about 9970.3304859969. The cubic root of 99407490 is about 463.2403375403.

The spelling of 99407490 in words is "ninety-nine million, four hundred seven thousand, four hundred ninety".