408432442 has 8 divisors (see below), whose sum is σ = 668344032. Its totient is φ = 185651100.

The previous prime is 408432421. The next prime is 408432461. The reversal of 408432442 is 244234804.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9282534 + ... + 9282577.

It is an arithmetic number, because the mean of its divisors is an integer number (83543004).

Almost surely, 2^408432442 is an apocalyptic number.

408432442 is a deficient number, since it is larger than the sum of its proper divisors (259911590).

408432442 is a wasteful number, since it uses less digits than its factorization.

408432442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18565124.

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 408432442 is about 20209.7115763684. The cubic root of 408432442 is about 741.9479006728.

The spelling of 408432442 in words is "four hundred eight million, four hundred thirty-two thousand, four hundred forty-two".