407870842 has 8 divisors (see below), whose sum is σ = 611892000. Its totient is φ = 203906844.

The previous prime is 407870831. The next prime is 407870849. The reversal of 407870842 is 248078704.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 407870795 and 407870804.

It is not an unprimeable number, because it can be changed into a prime (407870849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20209 + ... + 34987.

It is an arithmetic number, because the mean of its divisors is an integer number (76486500).

Almost surely, 2^407870842 is an apocalyptic number.

407870842 is a deficient number, since it is larger than the sum of its proper divisors (204021158).

407870842 is a wasteful number, since it uses less digits than its factorization.

407870842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28580.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 407870842 is about 20195.8124867508. The cubic root of 407870842 is about 741.6076819704.

The spelling of 407870842 in words is "four hundred seven million, eight hundred seventy thousand, eight hundred forty-two".