4240157 has 4 divisors (see below), whose sum is σ = 4489596. Its totient is φ = 3990720.

The previous prime is 4240151. The next prime is 4240169. The reversal of 4240157 is 7510424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 894916 = 1829^2 + 946^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240157 - 2¹² = 4236061 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 (4240151) 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, 124694 + ... + 124727.

It is an arithmetic number, because the mean of its divisors is an integer number (1122399).

Almost surely, 2^4240157 is an apocalyptic number.

It is an amenable number.

4240157 is a deficient number, since it is larger than the sum of its proper divisors (249439).

4240157 is a wasteful number, since it uses less digits than its factorization.

4240157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249438.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4240157 is about 2059.1641508146. The cubic root of 4240157 is about 161.8554443861.

The spelling of 4240157 in words is "four million, two hundred forty thousand, one hundred fifty-seven".