498515400 has 72 divisors (see below), whose sum is σ = 1674186930. Its totient is φ = 132936960.

The previous prime is 498515389. The next prime is 498515401. The reversal of 498515400 is 4515894.

It can be written as a sum of positive squares in 3 ways, for example, as 373030596 + 125484804 = 19314^2 + 11202^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (498515401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 136677 + ... + 140276.

Almost surely, 2^498515400 is an apocalyptic number.

498515400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

498515400 is an abundant number, since it is smaller than the sum of its proper divisors (1175671530).

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

498515400 is a wasteful number, since it uses less digits than its factorization.

498515400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276975 (or 276963 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 498515400 is about 22327.4584312680. The cubic root of 498515400 is about 792.9141953449.

The spelling of 498515400 in words is "four hundred ninety-eight million, five hundred fifteen thousand, four hundred".