9249990 has 16 divisors (see below), whose sum is σ = 22200048. Its totient is φ = 2466656.

The previous prime is 9249983. The next prime is 9250009. The reversal of 9249990 is 999429.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154137 + ... + 154196.

It is an arithmetic number, because the mean of its divisors is an integer number (1387503).

Almost surely, 2^9249990 is an apocalyptic number.

9249990 is an abundant number, since it is smaller than the sum of its proper divisors (12950058).

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

9249990 is a wasteful number, since it uses less digits than its factorization.

9249990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308343.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 9249990 is about 3041.3796211588. The cubic root of 9249990 is about 209.9167470447.

The spelling of 9249990 in words is "nine million, two hundred forty-nine thousand, nine hundred ninety".