426787842 has 64 divisors (see below), whose sum is σ = 983687040. Its totient is φ = 122342400.

The previous prime is 426787831. The next prime is 426787843. The reversal of 426787842 is 248787624.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 426787791 and 426787800.

It is not an unprimeable number, because it can be changed into a prime (426787843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88042 + ... + 92762.

It is an arithmetic number, because the mean of its divisors is an integer number (15370110).

Almost surely, 2^426787842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426787842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491843520).

426787842 is an abundant number, since it is smaller than the sum of its proper divisors (556899198).

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

426787842 is a wasteful number, since it uses less digits than its factorization.

426787842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819.

The product of its digits is 1204224, while the sum is 48.

The square root of 426787842 is about 20658.8441593425. The cubic root of 426787842 is about 752.9000853305.

The spelling of 426787842 in words is "four hundred twenty-six million, seven hundred eighty-seven thousand, eight hundred forty-two".