404354142 has 48 divisors (see below), whose sum is σ = 910540800. Its totient is φ = 129546000.

The previous prime is 404354141. The next prime is 404354147. The reversal of 404354142 is 241453404.

It is a happy number.

404354142 is a `hidden beast` number, since 40 + 43 + 541 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404354141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81859 + ... + 86657.

It is an arithmetic number, because the mean of its divisors is an integer number (18969600).

Almost surely, 2^404354142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404354142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455270400).

404354142 is an abundant number, since it is smaller than the sum of its proper divisors (506186658).

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

404354142 is a wasteful number, since it uses less digits than its factorization.

404354142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989 (or 4986 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 404354142 is about 20108.5589240005. The cubic root of 404354142 is about 739.4701234729.

It can be divided in two parts, 404354 and 142, that added together give a square (404496 = 636²).

The spelling of 404354142 in words is "four hundred four million, three hundred fifty-four thousand, one hundred forty-two".