407473642 has 8 divisors (see below), whose sum is σ = 613747332. Its totient is φ = 202891200.

The previous prime is 407473613. The next prime is 407473667. The reversal of 407473642 is 246374704.

It can be written as a sum of positive squares in 2 ways, for example, as 400760361 + 6713281 = 20019^2 + 2591^2 .

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, 422209 + ... + 423172.

Almost surely, 2^407473642 is an apocalyptic number.

407473642 is a deficient number, since it is larger than the sum of its proper divisors (206273690).

407473642 is a wasteful number, since it uses less digits than its factorization.

407473642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845624.

The product of its (nonzero) digits is 112896, while the sum is 37.

The square root of 407473642 is about 20185.9763697474. The cubic root of 407473642 is about 741.3668686110.

The spelling of 407473642 in words is "four hundred seven million, four hundred seventy-three thousand, six hundred forty-two".