426140435406 has 32 divisors (see below), whose sum is σ = 974796963840. Its totient is φ = 121659199776.

The previous prime is 426140435401. The next prime is 426140435407. The reversal of 426140435406 is 604534041624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426140435401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3912741 + ... + 4020176.

It is an arithmetic number, because the mean of its divisors is an integer number (30462405120).

Almost surely, 2^426140435406 is an apocalyptic number.

426140435406 is an abundant number, since it is smaller than the sum of its proper divisors (548656528434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426140435406 is a wasteful number, since it uses less digits than its factorization.

426140435406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934208.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 426140435406 in words is "four hundred twenty-six billion, one hundred forty million, four hundred thirty-five thousand, four hundred six".