404015142 has 32 divisors (see below), whose sum is σ = 820884960. Its totient is φ = 132537600.

The previous prime is 404015111. The next prime is 404015179. The reversal of 404015142 is 241510404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309892 + ... + 311192.

It is an arithmetic number, because the mean of its divisors is an integer number (25652655).

Almost surely, 2^404015142 is an apocalyptic number.

404015142 is an abundant number, since it is smaller than the sum of its proper divisors (416869818).

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

404015142 is a wasteful number, since it uses less digits than its factorization.

404015142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 404015142 is about 20100.1279100408. The cubic root of 404015142 is about 739.2634148537.

Adding to 404015142 its reverse (241510404), we get a palindrome (645525546).

The spelling of 404015142 in words is "four hundred four million, fifteen thousand, one hundred forty-two".