408531442 has 16 divisors (see below), whose sum is σ = 670878432. Its totient is φ = 185037120.

The previous prime is 408531401. The next prime is 408531443. The reversal of 408531442 is 244135804.

It is not an unprimeable number, because it can be changed into a prime (408531443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26583 + ... + 39034.

It is an arithmetic number, because the mean of its divisors is an integer number (41929902).

Almost surely, 2^408531442 is an apocalyptic number.

408531442 is a deficient number, since it is larger than the sum of its proper divisors (262346990).

408531442 is a wasteful number, since it uses less digits than its factorization.

408531442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65913.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 408531442 is about 20212.1607454522. The cubic root of 408531442 is about 742.0078427837.

The spelling of 408531442 in words is "four hundred eight million, five hundred thirty-one thousand, four hundred forty-two".