426221400 has 96 divisors (see below), whose sum is σ = 1441425600. Its totient is φ = 103324800.

The previous prime is 426221321. The next prime is 426221429. The reversal of 426221400 is 4122624.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25690 + ... + 38889.

It is an arithmetic number, because the mean of its divisors is an integer number (15014850).

Almost surely, 2^426221400 is an apocalyptic number.

426221400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426221400 is an abundant number, since it is smaller than the sum of its proper divisors (1015204200).

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

426221400 is a wasteful number, since it uses less digits than its factorization.

426221400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64609 (or 64600 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 426221400 is about 20645.1301763878. The cubic root of 426221400 is about 752.5668494675.

The spelling of 426221400 in words is "four hundred twenty-six million, two hundred twenty-one thousand, four hundred".