42611645 has 8 divisors (see below), whose sum is σ = 51238656. Its totient is φ = 34019536.

The previous prime is 42611641. The next prime is 42611693. The reversal of 42611645 is 54611624.

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

It is a cyclic number.

It is not a de Polignac number, because 42611645 - 2² = 42611641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42611641) 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, 5957 + ... + 10986.

It is an arithmetic number, because the mean of its divisors is an integer number (6404832).

Almost surely, 2^42611645 is an apocalyptic number.

It is an amenable number.

42611645 is a deficient number, since it is larger than the sum of its proper divisors (8627011).

42611645 is a wasteful number, since it uses less digits than its factorization.

42611645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17451.

The product of its digits is 5760, while the sum is 29.

The square root of 42611645 is about 6527.7595697146. The cubic root of 42611645 is about 349.2819154902.

The spelling of 42611645 in words is "forty-two million, six hundred eleven thousand, six hundred forty-five".