4140645 has 8 divisors (see below), whose sum is σ = 6625056. Its totient is φ = 2208336.

The previous prime is 4140641. The next prime is 4140683. The reversal of 4140645 is 5460414.

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

It is not a de Polignac number, because 4140645 - 2² = 4140641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140641) 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, 138007 + ... + 138036.

It is an arithmetic number, because the mean of its divisors is an integer number (828132).

Almost surely, 2^4140645 is an apocalyptic number.

It is an amenable number.

4140645 is a deficient number, since it is larger than the sum of its proper divisors (2484411).

4140645 is a wasteful number, since it uses less digits than its factorization.

4140645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276051.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 4140645 is about 2034.8574888675. The cubic root of 4140645 is about 160.5792157559.

The spelling of 4140645 in words is "four million, one hundred forty thousand, six hundred forty-five".