42660443 has 16 divisors (see below), whose sum is σ = 50233344. Its totient is φ = 35471520.

The previous prime is 42660407. The next prime is 42660451. The reversal of 42660443 is 34406624.

It is a happy number.

It is not a de Polignac number, because 42660443 - 2²² = 38466139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42660143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41273 + ... + 42293.

It is an arithmetic number, because the mean of its divisors is an integer number (3139584).

Almost surely, 2^42660443 is an apocalyptic number.

42660443 is a deficient number, since it is larger than the sum of its proper divisors (7572901).

42660443 is a wasteful number, since it uses less digits than its factorization.

42660443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 42660443 is about 6531.4962298083. The cubic root of 42660443 is about 349.4151948383.

The spelling of 42660443 in words is "forty-two million, six hundred sixty thousand, four hundred forty-three".