408339042 has 8 divisors (see below), whose sum is σ = 816678096. Its totient is φ = 136113012.

The previous prime is 408339023. The next prime is 408339047. The reversal of 408339042 is 240933804.

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

408339042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 408338994 and 408339012.

It is not an unprimeable number, because it can be changed into a prime (408339047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34028248 + ... + 34028259.

It is an arithmetic number, because the mean of its divisors is an integer number (102084762).

Almost surely, 2^408339042 is an apocalyptic number.

408339042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

408339042 is a wasteful number, since it uses less digits than its factorization.

408339042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68056512.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 408339042 is about 20207.4006740105. The cubic root of 408339042 is about 741.8913403462.

The spelling of 408339042 in words is "four hundred eight million, three hundred thirty-nine thousand, forty-two".