4142645 has 32 divisors (see below), whose sum is σ = 5951232. Its totient is φ = 2737152.

The previous prime is 4142641. The next prime is 4142651. The reversal of 4142645 is 5462414.

It is a cyclic number.

It is not a de Polignac number, because 4142645 - 2² = 4142641 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 (4142641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25334 + ... + 25496.

It is an arithmetic number, because the mean of its divisors is an integer number (185976).

Almost surely, 2^4142645 is an apocalyptic number.

It is an amenable number.

4142645 is a deficient number, since it is larger than the sum of its proper divisors (1808587).

4142645 is a wasteful number, since it uses less digits than its factorization.

4142645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221.

The product of its digits is 3840, while the sum is 26.

The square root of 4142645 is about 2035.3488644456. The cubic root of 4142645 is about 160.6050657331.

The spelling of 4142645 in words is "four million, one hundred forty-two thousand, six hundred forty-five".