404221086 has 36 divisors (see below), whose sum is σ = 924348672. Its totient is φ = 127646712.

The previous prime is 404221079. The next prime is 404221093. The reversal of 404221086 is 680122404.

It is an interprime number because it is at equal distance from previous prime (404221079) and next prime (404221093).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24606 + ... + 37601.

It is an arithmetic number, because the mean of its divisors is an integer number (25676352).

Almost surely, 2^404221086 is an apocalyptic number.

404221086 is an abundant number, since it is smaller than the sum of its proper divisors (520127586).

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

404221086 is a wasteful number, since it uses less digits than its factorization.

404221086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62253 (or 62231 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 404221086 is about 20105.2502098333. The cubic root of 404221086 is about 739.3890050336.

The spelling of 404221086 in words is "four hundred four million, two hundred twenty-one thousand, eighty-six".