2444157 has 6 divisors (see below), whose sum is σ = 3530462. Its totient is φ = 1629432.

The previous prime is 2444153. The next prime is 2444159. The reversal of 2444157 is 7514442.

2444157 is a `hidden beast` number, since 244 + 415 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2414916 + 29241 = 1554^2 + 171^2 .

It is not a de Polignac number, because 2444157 - 2² = 2444153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2444157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2444153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135778 + ... + 135795.

2^2444157 is an apocalyptic number.

It is an amenable number.

2444157 is a deficient number, since it is larger than the sum of its proper divisors (1086305).

2444157 is a wasteful number, since it uses less digits than its factorization.

2444157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271579 (or 271576 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 2444157 is about 1563.3799921964. The cubic root of 2444157 is about 134.7027203350.

Adding to 2444157 its reverse (7514442), we get a palindrome (9958599).

It can be divided in two parts, 2444 and 157, that added together give a square (2601 = 51²).

The spelling of 2444157 in words is "two million, four hundred forty-four thousand, one hundred fifty-seven".