426393836 has 36 divisors (see below), whose sum is σ = 823662504. Its totient is φ = 193130520.

The previous prime is 426393811. The next prime is 426393859. The reversal of 426393836 is 638393624.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1506551 + ... + 1506833.

It is an arithmetic number, because the mean of its divisors is an integer number (22879514).

Almost surely, 2^426393836 is an apocalyptic number.

It is an amenable number.

426393836 is a deficient number, since it is larger than the sum of its proper divisors (397268668).

426393836 is an equidigital number, since it uses as much as digits as its factorization.

426393836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 296 counting only the distinct ones).

The product of its digits is 559872, while the sum is 44.

The square root of 426393836 is about 20649.3059447527. The cubic root of 426393836 is about 752.6683242103.

Multiplying 426393836 by its sum of digits (44), we get a square (18761328784 = 136972²).

426393836 divided by its sum of digits (44) gives a square (9690769 = 3113²).

The spelling of 426393836 in words is "four hundred twenty-six million, three hundred ninety-three thousand, eight hundred thirty-six".