408008142 has 24 divisors (see below), whose sum is σ = 884913744. Its totient is φ = 135864864.

The previous prime is 408008137. The next prime is 408008173. The reversal of 408008142 is 241800804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7623 + ... + 29565.

It is an arithmetic number, because the mean of its divisors is an integer number (36871406).

Almost surely, 2^408008142 is an apocalyptic number.

408008142 is an abundant number, since it is smaller than the sum of its proper divisors (476905602).

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

408008142 is a wasteful number, since it uses less digits than its factorization.

408008142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22984 (or 22981 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 408008142 is about 20199.2114202510. The cubic root of 408008142 is about 741.6908874863.

Adding to 408008142 its reverse (241800804), we get a palindrome (649808946).

The spelling of 408008142 in words is "four hundred eight million, eight thousand, one hundred forty-two".