498409578 has 32 divisors (see below), whose sum is σ = 1121606400. Its totient is φ = 164032128.

The previous prime is 498409547. The next prime is 498409579. The reversal of 498409578 is 875904894.

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

It is not an unprimeable number, because it can be changed into a prime (498409579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54151 + ... + 62682.

It is an arithmetic number, because the mean of its divisors is an integer number (35050200).

Almost surely, 2^498409578 is an apocalyptic number.

498409578 is an abundant number, since it is smaller than the sum of its proper divisors (623196822).

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

498409578 is a wasteful number, since it uses less digits than its factorization.

498409578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116923 (or 116917 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 498409578 is about 22325.0885328592. The cubic root of 498409578 is about 792.8580862767.

The spelling of 498409578 in words is "four hundred ninety-eight million, four hundred nine thousand, five hundred seventy-eight".