418828320 has 240 divisors, whose sum is σ = 1565886168. Its totient is φ = 105062400.

The previous prime is 418828307. The next prime is 418828349. The reversal of 418828320 is 23828814.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 299843856 + 118984464 = 17316^2 + 10908^2 .

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 219370 + ... + 221270.

Almost surely, 2^418828320 is an apocalyptic number.

418828320 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 418828320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782943084).

418828320 is an abundant number, since it is smaller than the sum of its proper divisors (1147057848).

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

418828320 is a wasteful number, since it uses less digits than its factorization.

418828320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 418828320 is about 20465.2955023865. The cubic root of 418828320 is about 748.1901963270.

The spelling of 418828320 in words is "four hundred eighteen million, eight hundred twenty-eight thousand, three hundred twenty".