2400045 has 24 divisors (see below), whose sum is σ = 3994848. Its totient is φ = 1229760.

The previous prime is 2400037. The next prime is 2400053. The reversal of 2400045 is 5400042.

It is an interprime number because it is at equal distance from previous prime (2400037) and next prime (2400053).

It is not a de Polignac number, because 2400045 - 2³ = 2400037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2399997 and 2400033.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39315 + ... + 39375.

It is an arithmetic number, because the mean of its divisors is an integer number (166452).

2^2400045 is an apocalyptic number.

It is an amenable number.

2400045 is a deficient number, since it is larger than the sum of its proper divisors (1594803).

2400045 is an equidigital number, since it uses as much as digits as its factorization.

2400045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2400045 is about 1549.2078621024. The cubic root of 2400045 is about 133.8874268024.

Adding to 2400045 its reverse (5400042), we get a palindrome (7800087).

The spelling of 2400045 in words is "two million, four hundred thousand, forty-five".