2345645 has 8 divisors (see below), whose sum is σ = 2963040. Its totient is φ = 1777680.

The previous prime is 2345641. The next prime is 2345657. The reversal of 2345645 is 5465432.

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

It is not a de Polignac number, because 2345645 - 2² = 2345641 is a prime.

It is a super-3 number, since 3×2345645³ = 38717571496137633375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345641) 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, 12251 + ... + 12440.

It is an arithmetic number, because the mean of its divisors is an integer number (370380).

2^2345645 is an apocalyptic number.

It is an amenable number.

2345645 is a deficient number, since it is larger than the sum of its proper divisors (617395).

2345645 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 2345645 = (4364552)₉.

2345645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24715.

The product of its digits is 14400, while the sum is 29.

The square root of 2345645 is about 1531.5498685972. The cubic root of 2345645 is about 132.8681112902.

The spelling of 2345645 in words is "two million, three hundred forty-five thousand, six hundred forty-five".