404016642 has 24 divisors (see below), whose sum is σ = 877129344. Its totient is φ = 134401464.

The previous prime is 404016637. The next prime is 404016647. The reversal of 404016642 is 246610404.

404016642 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 16 + 642 = 666.

It is an interprime number because it is at equal distance from previous prime (404016637) and next prime (404016647).

It is not an unprimeable number, because it can be changed into a prime (404016647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13258 + ... + 31365.

It is an arithmetic number, because the mean of its divisors is an integer number (36547056).

Almost surely, 2^404016642 is an apocalyptic number.

404016642 is an abundant number, since it is smaller than the sum of its proper divisors (473112702).

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

404016642 is a wasteful number, since it uses less digits than its factorization.

404016642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45134 (or 45131 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 404016642 is about 20100.1652232015. The cubic root of 404016642 is about 739.2643297482.

The spelling of 404016642 in words is "four hundred four million, sixteen thousand, six hundred forty-two".