404740620 has 72 divisors (see below), whose sum is σ = 1236034800. Its totient is φ = 107199360.

The previous prime is 404740601. The next prime is 404740631. The reversal of 404740620 is 26047404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19275 + ... + 34365.

It is an arithmetic number, because the mean of its divisors is an integer number (17167150).

Almost surely, 2^404740620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404740620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618017400).

404740620 is an abundant number, since it is smaller than the sum of its proper divisors (831294180).

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

404740620 is a wasteful number, since it uses less digits than its factorization.

404740620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15255 (or 15250 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 404740620 is about 20118.1664174447. The cubic root of 404740620 is about 739.7056413862.

The spelling of 404740620 in words is "four hundred four million, seven hundred forty thousand, six hundred twenty".