549459490 has 16 divisors (see below), whose sum is σ = 990243648. Its totient is φ = 219513456.

The previous prime is 549459487. The next prime is 549459511. The reversal of 549459490 is 94954945.

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, 25152 + ... + 41611.

It is an arithmetic number, because the mean of its divisors is an integer number (61890228).

Almost surely, 2^549459490 is an apocalyptic number.

549459490 is a deficient number, since it is larger than the sum of its proper divisors (440784158).

549459490 is a wasteful number, since it uses less digits than its factorization.

549459490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67593.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 549459490 is about 23440.5522545865. The cubic root of 549459490 is about 819.0527878799.

The spelling of 549459490 in words is "five hundred forty-nine million, four hundred fifty-nine thousand, four hundred ninety".