4418157 has 4 divisors (see below), whose sum is σ = 5890880. Its totient is φ = 2945436.

The previous prime is 4418149. The next prime is 4418159. The reversal of 4418157 is 7518144.

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 not a de Polignac number, because 4418157 - 2³ = 4418149 is a prime.

It is a super-2 number, since 2×4418157² = 39040222553298, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

4418157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4418159) 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, 736357 + ... + 736362.

It is an arithmetic number, because the mean of its divisors is an integer number (1472720).

Almost surely, 2^4418157 is an apocalyptic number.

It is an amenable number.

4418157 is a deficient number, since it is larger than the sum of its proper divisors (1472723).

4418157 is a wasteful number, since it uses less digits than its factorization.

4418157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472722.

The product of its digits is 4480, while the sum is 30.

The square root of 4418157 is about 2101.9412456108. The cubic root of 4418157 is about 164.0893450312.

The spelling of 4418157 in words is "four million, four hundred eighteen thousand, one hundred fifty-seven".