42660899 has 8 divisors (see below), whose sum is σ = 43464480. Its totient is φ = 41860800.

The previous prime is 42660887. The next prime is 42660901. The reversal of 42660899 is 99806624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42660899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42660809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45962 + ... + 46880.

It is an arithmetic number, because the mean of its divisors is an integer number (5433060).

Almost surely, 2^42660899 is an apocalyptic number.

42660899 is a deficient number, since it is larger than the sum of its proper divisors (803581).

42660899 is an equidigital number, since it uses as much as digits as its factorization.

42660899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 42660899 is about 6531.5311374899. The cubic root of 42660899 is about 349.4164398071.

The spelling of 42660899 in words is "forty-two million, six hundred sixty thousand, eight hundred ninety-nine".