4440157 has 4 divisors (see below), whose sum is σ = 4506496. Its totient is φ = 4373820.

The previous prime is 4440133. The next prime is 4440169. The reversal of 4440157 is 7510444.

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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4440157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440187) 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, 33069 + ... + 33202.

It is an arithmetic number, because the mean of its divisors is an integer number (1126624).

Almost surely, 2^4440157 is an apocalyptic number.

It is an amenable number.

4440157 is a deficient number, since it is larger than the sum of its proper divisors (66339).

4440157 is an equidigital number, since it uses as much as digits as its factorization.

4440157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66338.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 4440157 is about 2107.1680046926. The cubic root of 4440157 is about 164.3612525429.

The spelling of 4440157 in words is "four million, four hundred forty thousand, one hundred fifty-seven".