400504142 has 8 divisors (see below), whose sum is σ = 601728600. Its totient is φ = 199927944.

The previous prime is 400504127. The next prime is 400504171. The reversal of 400504142 is 241405004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160517 + ... + 162992.

It is an arithmetic number, because the mean of its divisors is an integer number (75216075).

Almost surely, 2^400504142 is an apocalyptic number.

400504142 is a deficient number, since it is larger than the sum of its proper divisors (201224458).

400504142 is a wasteful number, since it uses less digits than its factorization.

400504142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324130.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 400504142 is about 20012.5995812638. The cubic root of 400504142 is about 737.1157156078.

Adding to 400504142 its reverse (241405004), we get a palindrome (641909146).

The spelling of 400504142 in words is "four hundred million, five hundred four thousand, one hundred forty-two".