2452645 has 16 divisors (see below), whose sum is σ = 3210480. Its totient is φ = 1787904.

The previous prime is 2452633. The next prime is 2452649. The reversal of 2452645 is 5462542.

2452645 = 1² + 2² + ... + 194².

2452645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 427716 + 2024929 = 654^2 + 1423^2 .

It is not a de Polignac number, because 2452645 - 2⁷ = 2452517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2452649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6111 + ... + 6499.

It is an arithmetic number, because the mean of its divisors is an integer number (200655).

2^2452645 is an apocalyptic number.

It is an amenable number.

2452645 is a deficient number, since it is larger than the sum of its proper divisors (757835).

2452645 is a wasteful number, since it uses less digits than its factorization.

2452645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its digits is 9600, while the sum is 28.

The square root of 2452645 is about 1566.0922705894. The cubic root of 2452645 is about 134.8584707906.

It can be divided in two parts, 245 and 2645, that multiplied together give a square (648025 = 805²).

The spelling of 2452645 in words is "two million, four hundred fifty-two thousand, six hundred forty-five".