2264645 has 6 divisors (see below), whose sum is σ = 2721618. Its totient is φ = 1809024.

The previous prime is 2264641. The next prime is 2264657. The reversal of 2264645 is 5464622.

It can be written as a sum of positive squares in 3 ways, for example, as 47524 + 2217121 = 218^2 + 1489^2 .

It is not a de Polignac number, because 2264645 - 2² = 2264641 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 2¹⁵ + 6 + 4⁷ + 6³ + 4⁹ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2264641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3029 + ... + 3701.

It is an arithmetic number, because the mean of its divisors is an integer number (453603).

2^2264645 is an apocalyptic number.

It is an amenable number.

2264645 is a deficient number, since it is larger than the sum of its proper divisors (456973).

2264645 is an frugal number, since it uses more digits than its factorization.

2264645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351 (or 678 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 2264645 is about 1504.8737488574. The cubic root of 2264645 is about 131.3207570105.

Multiplying 2264645 by its product of digits (11520), we get a square (26088710400 = 161520²).

The spelling of 2264645 in words is "two million, two hundred sixty-four thousand, six hundred forty-five".