426293406 has 72 divisors (see below), whose sum is σ = 1160311152. Its totient is φ = 110721600.

The previous prime is 426293381. The next prime is 426293423. The reversal of 426293406 is 604392624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1266 + ... + 29226.

Almost surely, 2^426293406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426293406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580155576).

426293406 is an abundant number, since it is smaller than the sum of its proper divisors (734017746).

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

426293406 is a wasteful number, since it uses less digits than its factorization.

426293406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27998 (or 27984 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 426293406 is about 20646.8740006811. The cubic root of 426293406 is about 752.6092267212.

The spelling of 426293406 in words is "four hundred twenty-six million, two hundred ninety-three thousand, four hundred six".