416640400 has 180 divisors, whose sum is σ = 1147895280. Its totient is φ = 144108800.

The previous prime is 416640397. The next prime is 416640421. The reversal of 416640400 is 4046614.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2327511 + ... + 2327689.

It is an arithmetic number, because the mean of its divisors is an integer number (6377196).

Almost surely, 2^416640400 is an apocalyptic number.

416640400 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 416640400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573947640).

416640400 is an abundant number, since it is smaller than the sum of its proper divisors (731254880).

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

416640400 is a wasteful number, since it uses less digits than its factorization.

416640400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 416640400 is about 20411.7711137471. The cubic root of 416640400 is about 746.8850958878.

The spelling of 416640400 in words is "four hundred sixteen million, six hundred forty thousand, four hundred".