498640404 has 12 divisors (see below), whose sum is σ = 1163494304. Its totient is φ = 166213464.

The previous prime is 498640403. The next prime is 498640421. The reversal of 498640404 is 404046894.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498640403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20776672 + ... + 20776695.

Almost surely, 2^498640404 is an apocalyptic number.

It is an amenable number.

498640404 is an abundant number, since it is smaller than the sum of its proper divisors (664853900).

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

498640404 is a wasteful number, since it uses less digits than its factorization.

498640404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41553374 (or 41553372 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 498640404 is about 22330.2575891995. The cubic root of 498640404 is about 792.9804648875.

The spelling of 498640404 in words is "four hundred ninety-eight million, six hundred forty thousand, four hundred four".