409380498 has 54 divisors (see below), whose sum is σ = 939876327. Its totient is φ = 128763000.

The previous prime is 409380467. The next prime is 409380529. The reversal of 409380498 is 894083904.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (409380467) and next prime (409380529).

It can be written as a sum of positive squares in only one way, i.e., 204690249 + 204690249 = 14307^2 + 14307^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1630873 + ... + 1631123.

Almost surely, 2^409380498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 409380498

409380498 is an abundant number, since it is smaller than the sum of its proper divisors (530495829).

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

409380498 is a wasteful number, since it uses less digits than its factorization.

409380498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 409380498 is about 20233.1534368719. The cubic root of 409380498 is about 742.5215284715.

The spelling of 409380498 in words is "four hundred nine million, three hundred eighty thousand, four hundred ninety-eight".