406672442 has 8 divisors (see below), whose sum is σ = 665464032. Its totient is φ = 184851100.

The previous prime is 406672393. The next prime is 406672463. The reversal of 406672442 is 244276604.

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, 9242534 + ... + 9242577.

It is an arithmetic number, because the mean of its divisors is an integer number (83183004).

Almost surely, 2^406672442 is an apocalyptic number.

406672442 is a deficient number, since it is larger than the sum of its proper divisors (258791590).

406672442 is a wasteful number, since it uses less digits than its factorization.

406672442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18485124.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 406672442 is about 20166.1211441368. The cubic root of 406672442 is about 740.8806425843.

The spelling of 406672442 in words is "four hundred six million, six hundred seventy-two thousand, four hundred forty-two".