2453645 has 8 divisors (see below), whose sum is σ = 3016440. Its totient is φ = 1914880.

The previous prime is 2453629. The next prime is 2453651. The reversal of 2453645 is 5463542.

It can be written as a sum of positive squares in 4 ways, for example, as 100489 + 2353156 = 317^2 + 1534^2 .

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

It is not a de Polignac number, because 2453645 - 2⁴ = 2453629 is a prime.

It is a super-3 number, since 3×2453645³ = 44315580114633933375, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5780 + ... + 6189.

It is an arithmetic number, because the mean of its divisors is an integer number (377055).

2^2453645 is an apocalyptic number.

It is an amenable number.

2453645 is a deficient number, since it is larger than the sum of its proper divisors (562795).

2453645 is a wasteful number, since it uses less digits than its factorization.

2453645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015.

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

The square root of 2453645 is about 1566.4115040436. The cubic root of 2453645 is about 134.8767966044.

It can be divided in two parts, 245 and 3645, that multiplied together give a square (893025 = 945²).

The spelling of 2453645 in words is "two million, four hundred fifty-three thousand, six hundred forty-five".