407728942 has 8 divisors (see below), whose sum is σ = 643782600. Its totient is φ = 193134744.

The previous prime is 407728933. The next prime is 407728943. The reversal of 407728942 is 249827704.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407728943) 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, 5364817 + ... + 5364892.

It is an arithmetic number, because the mean of its divisors is an integer number (80472825).

Almost surely, 2^407728942 is an apocalyptic number.

407728942 is a deficient number, since it is larger than the sum of its proper divisors (236053658).

407728942 is a wasteful number, since it uses less digits than its factorization.

407728942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10729730.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 407728942 is about 20192.2990766282. The cubic root of 407728942 is about 741.5216691731.

The spelling of 407728942 in words is "four hundred seven million, seven hundred twenty-eight thousand, nine hundred forty-two".