4157982 has 12 divisors (see below), whose sum is σ = 9009000. Its totient is φ = 1385988.

The previous prime is 4157981. The next prime is 4158001. The reversal of 4157982 is 2897514.

4157982 is a `hidden beast` number, since 4 + 1 + 579 + 82 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115482 + ... + 115517.

It is an arithmetic number, because the mean of its divisors is an integer number (750750).

Almost surely, 2^4157982 is an apocalyptic number.

4157982 is an abundant number, since it is smaller than the sum of its proper divisors (4851018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4157982 is a wasteful number, since it uses less digits than its factorization.

4157982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231007 (or 231004 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 4157982 is about 2039.1130424770. The cubic root of 4157982 is about 160.8030202893.

The spelling of 4157982 in words is "four million, one hundred fifty-seven thousand, nine hundred eighty-two".