426221620 has 48 divisors (see below), whose sum is σ = 1033881408. Its totient is φ = 145871360.

The previous prime is 426221617. The next prime is 426221647. The reversal of 426221620 is 26122624.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 53242 + ... + 60721.

It is an arithmetic number, because the mean of its divisors is an integer number (21539196).

Almost surely, 2^426221620 is an apocalyptic number.

It is an amenable number.

426221620 is an abundant number, since it is smaller than the sum of its proper divisors (607659788).

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

426221620 is a wasteful number, since it uses less digits than its factorization.

426221620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114000 (or 113998 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 426221620 is about 20645.1355045202. The cubic root of 426221620 is about 752.5669789500.

The spelling of 426221620 in words is "four hundred twenty-six million, two hundred twenty-one thousand, six hundred twenty".