426660100 has 18 divisors (see below), whose sum is σ = 925852634. Its totient is φ = 170664000.

The previous prime is 426660071. The next prime is 426660131. The reversal of 426660100 is 1066624.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7311616 + 419348484 = 2704^2 + 20478^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2133201 + ... + 2133400.

Almost surely, 2^426660100 is an apocalyptic number.

It is an amenable number.

426660100 is an abundant number, since it is smaller than the sum of its proper divisors (499192534).

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

426660100 is a wasteful number, since it uses less digits than its factorization.

426660100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266615 (or 4266608 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 426660100 is about 20655.7522254698. The cubic root of 426660100 is about 752.8249609163.

The spelling of 426660100 in words is "four hundred twenty-six million, six hundred sixty thousand, one hundred".