404690580 has 240 divisors, whose sum is σ = 1467518976. Its totient is φ = 91445760.

The previous prime is 404690569. The next prime is 404690591. The reversal of 404690580 is 85096404.

It is an interprime number because it is at equal distance from previous prime (404690569) and next prime (404690591).

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

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 1440040 + ... + 1440320.

Almost surely, 2^404690580 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 404690580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733759488).

404690580 is an abundant number, since it is smaller than the sum of its proper divisors (1062828396).

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

404690580 is a wasteful number, since it uses less digits than its factorization.

404690580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 404690580 is about 20116.9227268984. The cubic root of 404690580 is about 739.6751556923.

The spelling of 404690580 in words is "four hundred four million, six hundred ninety thousand, five hundred eighty".