2445401 has 4 divisors (see below), whose sum is σ = 2794752. Its totient is φ = 2096052.

The previous prime is 2445389. The next prime is 2445409. The reversal of 2445401 is 1045442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-2445401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2445409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174665 + ... + 174678.

It is an arithmetic number, because the mean of its divisors is an integer number (698688).

2^2445401 is an apocalyptic number.

It is an amenable number.

2445401 is a deficient number, since it is larger than the sum of its proper divisors (349351).

2445401 is an equidigital number, since it uses as much as digits as its factorization.

2445401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349350.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2445401 is about 1563.7777975147. Note that the first 4 decimals coincide. The cubic root of 2445401 is about 134.7255696259.

The spelling of 2445401 in words is "two million, four hundred forty-five thousand, four hundred one".