404605146 has 32 divisors (see below), whose sum is σ = 903310848. Its totient is φ = 119755440.

The previous prime is 404605081. The next prime is 404605147. The reversal of 404605146 is 641506404.

It is not an unprimeable number, because it can be changed into a prime (404605147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68446 + ... + 74121.

It is an arithmetic number, because the mean of its divisors is an integer number (28228464).

Almost surely, 2^404605146 is an apocalyptic number.

404605146 is an abundant number, since it is smaller than the sum of its proper divisors (498705702).

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

404605146 is a wasteful number, since it uses less digits than its factorization.

404605146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142626.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 404605146 is about 20114.7991787142. The cubic root of 404605146 is about 739.6231012275.

It can be divided in two parts, 404 and 605146, that added together give a triangular number (605550 = T₁₁₀₀).

The spelling of 404605146 in words is "four hundred four million, six hundred five thousand, one hundred forty-six".