404342142 has 32 divisors (see below), whose sum is σ = 834211872. Its totient is φ = 130558464.

The previous prime is 404342117. The next prime is 404342153. The reversal of 404342142 is 241243404.

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, 47818 + ... + 55634.

It is an arithmetic number, because the mean of its divisors is an integer number (26069121).

Almost surely, 2^404342142 is an apocalyptic number.

404342142 is an abundant number, since it is smaller than the sum of its proper divisors (429869730).

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

404342142 is a wasteful number, since it uses less digits than its factorization.

404342142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8092.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 404342142 is about 20108.2605413795. The cubic root of 404342142 is about 739.4628083265.

Adding to 404342142 its reverse (241243404), we get a palindrome (645585546).

The spelling of 404342142 in words is "four hundred four million, three hundred forty-two thousand, one hundred forty-two".