42664760 has 16 divisors (see below), whose sum is σ = 95995800. Its totient is φ = 17065888.

The previous prime is 42664753. The next prime is 42664813. The reversal of 42664760 is 6746624.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42664760.

It is a congruent number.

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, 533270 + ... + 533349.

Almost surely, 2^42664760 is an apocalyptic number.

42664760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42664760 is an abundant number, since it is smaller than the sum of its proper divisors (53331040).

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

42664760 is a wasteful number, since it uses less digits than its factorization.

42664760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066630 (or 1066626 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 42664760 is about 6531.8266970274. The cubic root of 42664760 is about 349.4269807334.

The spelling of 42664760 in words is "forty-two million, six hundred sixty-four thousand, seven hundred sixty".