406942430878 has 8 divisors (see below), whose sum is σ = 610748491968. Its totient is φ = 203359600224.

The previous prime is 406942430857. The next prime is 406942430899. The reversal of 406942430878 is 878034249604.

It is an interprime number because it is at equal distance from previous prime (406942430857) and next prime (406942430899).

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

It is a congruent number.

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, 55803051 + ... + 55810342.

It is an arithmetic number, because the mean of its divisors is an integer number (76343561496).

Almost surely, 2^406942430878 is an apocalyptic number.

406942430878 is a deficient number, since it is larger than the sum of its proper divisors (203806061090).

406942430878 is a wasteful number, since it uses less digits than its factorization.

406942430878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111615218.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 406942430878 in words is "four hundred six billion, nine hundred forty-two million, four hundred thirty thousand, eight hundred seventy-eight".