4421157 has 8 divisors (see below), whose sum is σ = 6348384. Its totient is φ = 2720688.

The previous prime is 4421147. The next prime is 4421159. The reversal of 4421157 is 7511244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4421157 - 2⁴ = 4421141 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56643 + ... + 56720.

It is an arithmetic number, because the mean of its divisors is an integer number (793548).

Almost surely, 2^4421157 is an apocalyptic number.

It is an amenable number.

4421157 is a deficient number, since it is larger than the sum of its proper divisors (1927227).

4421157 is a wasteful number, since it uses less digits than its factorization.

4421157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113379.

The product of its digits is 1120, while the sum is 24.

The square root of 4421157 is about 2102.6547505475. The cubic root of 4421157 is about 164.1264764005.

The spelling of 4421157 in words is "four million, four hundred twenty-one thousand, one hundred fifty-seven".