4640157 has 12 divisors (see below), whose sum is σ = 6721884. Its totient is φ = 3084480.

The previous prime is 4640147. The next prime is 4640159. The reversal of 4640157 is 7510464.

4640157 is a `hidden beast` number, since 4 + 640 + 15 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1887876 + 2752281 = 1374^2 + 1659^2 .

It is not a de Polignac number, because 4640157 - 2¹⁰ = 4639133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4640157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4393 + ... + 5345.

It is an arithmetic number, because the mean of its divisors is an integer number (560157).

Almost surely, 2^4640157 is an apocalyptic number.

It is an amenable number.

4640157 is a deficient number, since it is larger than the sum of its proper divisors (2081727).

4640157 is a wasteful number, since it uses less digits than its factorization.

4640157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 4640157 is about 2154.1023652557. The cubic root of 4640157 is about 166.7928994786.

The spelling of 4640157 in words is "four million, six hundred forty thousand, one hundred fifty-seven".