409948560 has 320 divisors, whose sum is σ = 1699891200. Its totient is φ = 88708608.

The previous prime is 409948559. The next prime is 409948571. The reversal of 409948560 is 65849904.

It is a happy number.

409948560 is a `hidden beast` number, since 40 + 9 + 9 + 48 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 63 ways as a sum of consecutive naturals, for example, 286567 + ... + 287993.

It is an arithmetic number, because the mean of its divisors is an integer number (5312160).

Almost surely, 2^409948560 is an apocalyptic number.

409948560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 409948560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849945600).

409948560 is an abundant number, since it is smaller than the sum of its proper divisors (1289942640).

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

409948560 is a wasteful number, since it uses less digits than its factorization.

409948560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 409948560 is about 20247.1864712113. The cubic root of 409948560 is about 742.8648140938.

The spelling of 409948560 in words is "four hundred nine million, nine hundred forty-eight thousand, five hundred sixty".