4428157 has 4 divisors (see below), whose sum is σ = 4434976. Its totient is φ = 4421340.

The previous prime is 4428139. The next prime is 4428161. The reversal of 4428157 is 7518244.

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 not a de Polignac number, because 4428157 - 2¹¹ = 4426109 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 (4423157) 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, 2319 + ... + 3772.

It is an arithmetic number, because the mean of its divisors is an integer number (1108744).

Almost surely, 2^4428157 is an apocalyptic number.

It is an amenable number.

4428157 is a deficient number, since it is larger than the sum of its proper divisors (6819).

4428157 is an equidigital number, since it uses as much as digits as its factorization.

4428157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818.

The product of its digits is 8960, while the sum is 31.

The square root of 4428157 is about 2104.3186545768. The cubic root of 4428157 is about 164.2130509877.

The spelling of 4428157 in words is "four million, four hundred twenty-eight thousand, one hundred fifty-seven".