498378636 has 48 divisors (see below), whose sum is σ = 1476679680. Its totient is φ = 142393680.

The previous prime is 498378623. The next prime is 498378653. The reversal of 498378636 is 636873894.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 328860 + ... + 330371.

It is an arithmetic number, because the mean of its divisors is an integer number (30764160).

Almost surely, 2^498378636 is an apocalyptic number.

It is an amenable number.

498378636 is an abundant number, since it is smaller than the sum of its proper divisors (978301044).

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

498378636 is a wasteful number, since it uses less digits than its factorization.

498378636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659251 (or 659243 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 498378636 is about 22324.3955349299. The cubic root of 498378636 is about 792.8416786716.

The spelling of 498378636 in words is "four hundred ninety-eight million, three hundred seventy-eight thousand, six hundred thirty-six".