424193826 has 64 divisors (see below), whose sum is σ = 1054432512. Its totient is φ = 110979072.

The previous prime is 424193813. The next prime is 424193837. The reversal of 424193826 is 628391424.

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 31 ways as a sum of consecutive naturals, for example, 18390 + ... + 34446.

It is an arithmetic number, because the mean of its divisors is an integer number (16475508).

Almost surely, 2^424193826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424193826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527216256).

424193826 is an abundant number, since it is smaller than the sum of its proper divisors (630238686).

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

424193826 is a wasteful number, since it uses less digits than its factorization.

424193826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16123.

The product of its digits is 82944, while the sum is 39.

The square root of 424193826 is about 20595.9662555560. The cubic root of 424193826 is about 751.3716091664.

The spelling of 424193826 in words is "four hundred twenty-four million, one hundred ninety-three thousand, eight hundred twenty-six".