438494498 has 54 divisors (see below), whose sum is σ = 768050451. Its totient is φ = 187634304.

The previous prime is 438494359. The next prime is 438494513. The reversal of 438494498 is 894494834.

It can be written as a sum of positive squares in 5 ways, for example, as 177768889 + 260725609 = 13333^2 + 16147^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14807.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6544661 + ... + 6544727.

Almost surely, 2^438494498 is an apocalyptic number.

438494498 is a deficient number, since it is larger than the sum of its proper divisors (329555953).

438494498 is a wasteful number, since it uses less digits than its factorization.

438494498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 99 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 53.

The square root of 438494498 is about 20940.2602180584. The cubic root of 438494498 is about 759.7220232245.

The spelling of 438494498 in words is "four hundred thirty-eight million, four hundred ninety-four thousand, four hundred ninety-eight".