498644564 has 24 divisors (see below), whose sum is σ = 969923808. Its totient is φ = 222379040.

The previous prime is 498644551. The next prime is 498644599. The reversal of 498644564 is 465446894.

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, 104582 + ... + 109245.

It is an arithmetic number, because the mean of its divisors is an integer number (40413492).

Almost surely, 2^498644564 is an apocalyptic number.

498644564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

498644564 is a deficient number, since it is larger than the sum of its proper divisors (471279244).

498644564 is a wasteful number, since it uses less digits than its factorization.

498644564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213895 (or 213893 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 50.

The square root of 498644564 is about 22330.3507361618. The cubic root of 498644564 is about 792.9826700769.

The spelling of 498644564 in words is "four hundred ninety-eight million, six hundred forty-four thousand, five hundred sixty-four".