426402240406 has 8 divisors (see below), whose sum is σ = 647699605920. Its totient is φ = 210502371768.

The previous prime is 426402240379. The next prime is 426402240421. The reversal of 426402240406 is 604042204624.

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, 1349374021 + ... + 1349374336.

It is an arithmetic number, because the mean of its divisors is an integer number (80962450740).

Almost surely, 2^426402240406 is an apocalyptic number.

426402240406 is a deficient number, since it is larger than the sum of its proper divisors (221297365514).

426402240406 is a wasteful number, since it uses less digits than its factorization.

426402240406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698748438.

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 426402240406 in words is "four hundred twenty-six billion, four hundred two million, two hundred forty thousand, four hundred six".