99489490 has 32 divisors (see below), whose sum is σ = 187608960. Its totient is φ = 37914624.

The previous prime is 99489479. The next prime is 99489503. The reversal of 99489490 is 9498499.

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, 69906 + ... + 71314.

It is an arithmetic number, because the mean of its divisors is an integer number (5862780).

Almost surely, 2^99489490 is an apocalyptic number.

99489490 is a deficient number, since it is larger than the sum of its proper divisors (88119470).

99489490 is a wasteful number, since it uses less digits than its factorization.

99489490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 99489490 is about 9974.4418390204. The cubic root of 99489490 is about 463.3676762610.

The spelling of 99489490 in words is "ninety-nine million, four hundred eighty-nine thousand, four hundred ninety".