2306645 has 16 divisors (see below), whose sum is σ = 3198528. Its totient is φ = 1578240.

The previous prime is 2306641. The next prime is 2306651. The reversal of 2306645 is 5466032.

2306645 = T₅₄ + T₅₅ + ... + T₂₄₀.

It is not a de Polignac number, because 2306645 - 2² = 2306641 is a prime.

It is a super-2 number, since 2×2306645² = 10641222312050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2306641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299 + ... + 2168.

It is an arithmetic number, because the mean of its divisors is an integer number (199908).

2^2306645 is an apocalyptic number.

It is an amenable number.

2306645 is a deficient number, since it is larger than the sum of its proper divisors (891883).

2306645 is a wasteful number, since it uses less digits than its factorization.

2306645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2306645 is about 1518.7643003442. The cubic root of 2306645 is about 132.1276122801.

The spelling of 2306645 in words is "two million, three hundred six thousand, six hundred forty-five".