409960320 has 512 divisors, whose sum is σ = 1692057600. Its totient is φ = 81960960.

The previous prime is 409960297. The next prime is 409960351. The reversal of 409960320 is 23069904.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6948451 + ... + 6948509.

It is an arithmetic number, because the mean of its divisors is an integer number (3304800).

Almost surely, 2^409960320 is an apocalyptic number.

409960320 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 409960320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846028800).

409960320 is an abundant number, since it is smaller than the sum of its proper divisors (1282097280).

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

409960320 is a wasteful number, since it uses less digits than its factorization.

409960320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 409960320 is about 20247.4768798485. The cubic root of 409960320 is about 742.8719174295.

The spelling of 409960320 in words is "four hundred nine million, nine hundred sixty thousand, three hundred twenty".