42047660 has 12 divisors (see below), whose sum is σ = 88300128. Its totient is φ = 16819056.

The previous prime is 42047653. The next prime is 42047669. The reversal of 42047660 is 6674024.

It is a super-2 number, since 2×42047660² = 3536011422951200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42047669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051172 + ... + 1051211.

It is an arithmetic number, because the mean of its divisors is an integer number (7358344).

Almost surely, 2^42047660 is an apocalyptic number.

It is an amenable number.

42047660 is an abundant number, since it is smaller than the sum of its proper divisors (46252468).

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

42047660 is a wasteful number, since it uses less digits than its factorization.

42047660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102392 (or 2102390 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 42047660 is about 6484.4167046852. The cubic root of 42047660 is about 347.7340968736.

The spelling of 42047660 in words is "forty-two million, forty-seven thousand, six hundred sixty".