4228394157 has 48 divisors (see below), whose sum is σ = 6933250688. Its totient is φ = 2559314880.

The previous prime is 4228394147. The next prime is 4228394161. The reversal of 4228394157 is 7514938224.

4228394157 is a `hidden beast` number, since 4 + 228 + 3 + 9 + 415 + 7 = 666.

It is not a de Polignac number, because 4228394157 - 2²³ = 4220005549 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228394117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181728 + ... + 203670.

Almost surely, 2^4228394157 is an apocalyptic number.

It is an amenable number.

4228394157 is a deficient number, since it is larger than the sum of its proper divisors (2704856531).

4228394157 is a wasteful number, since it uses less digits than its factorization.

4228394157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22032 (or 22020 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 4228394157 is about 65026.1036584540. The cubic root of 4228394157 is about 1617.0563519658.

The spelling of 4228394157 in words is "four billion, two hundred twenty-eight million, three hundred ninety-four thousand, one hundred fifty-seven".