2400545 has 16 divisors (see below), whose sum is σ = 3328128. Its totient is φ = 1628160.

The previous prime is 2400521. The next prime is 2400551. The reversal of 2400545 is 5450042.

It is a happy number.

It is not a de Polignac number, because 2400545 - 2⁶ = 2400481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3425 + ... + 4065.

It is an arithmetic number, because the mean of its divisors is an integer number (208008).

2^2400545 is an apocalyptic number.

It is an amenable number.

2400545 is a deficient number, since it is larger than the sum of its proper divisors (927583).

2400545 is a wasteful number, since it uses less digits than its factorization.

2400545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2400545 is about 1549.3692264919. The cubic root of 2400545 is about 133.8967237205.

Adding to 2400545 its reverse (5450042), we get a palindrome (7850587).

The spelling of 2400545 in words is "two million, four hundred thousand, five hundred forty-five".