426660680 has 16 divisors (see below), whose sum is σ = 959986620. Its totient is φ = 170664256.

The previous prime is 426660671. The next prime is 426660701. The reversal of 426660680 is 86066624.

It can be written as a sum of positive squares in 2 ways, for example, as 426092164 + 568516 = 20642^2 + 754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333219 + ... + 5333298.

Almost surely, 2^426660680 is an apocalyptic number.

426660680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426660680 is an abundant number, since it is smaller than the sum of its proper divisors (533325940).

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

426660680 is a wasteful number, since it uses less digits than its factorization.

426660680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666528 (or 10666524 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 426660680 is about 20655.7662651377. The cubic root of 426660680 is about 752.8253020452.

It can be divided in two parts, 4266 and 60680, that added together give a palindrome (64946).

The spelling of 426660680 in words is "four hundred twenty-six million, six hundred sixty thousand, six hundred eighty".