426666220 has 24 divisors (see below), whose sum is σ = 896422464. Its totient is φ = 170585856.

The previous prime is 426666217. The next prime is 426666257. The reversal of 426666220 is 22666624.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56932 + ... + 63988.

It is an arithmetic number, because the mean of its divisors is an integer number (37350936).

Almost surely, 2^426666220 is an apocalyptic number.

It is an amenable number.

426666220 is an abundant number, since it is smaller than the sum of its proper divisors (469756244).

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

426666220 is a wasteful number, since it uses less digits than its factorization.

426666220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089 (or 10087 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 426666220 is about 20655.9003676916. The cubic root of 426666220 is about 752.8285603988.

The spelling of 426666220 in words is "four hundred twenty-six million, six hundred sixty-six thousand, two hundred twenty".