4157748 has 54 divisors (see below), whose sum is σ = 12230946. Its totient is φ = 1187424.

The previous prime is 4157731. The next prime is 4157749. The reversal of 4157748 is 8477514.

4157748 is a `hidden beast` number, since 41 + 577 + 48 = 666.

4157748 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2965284 + 1192464 = 1722^2 + 1092^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157749) 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 17 ways as a sum of consecutive naturals, for example, 586 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (226499).

Almost surely, 2^4157748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4157748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6115473).

4157748 is an abundant number, since it is smaller than the sum of its proper divisors (8073198).

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

4157748 is a wasteful number, since it uses less digits than its factorization.

4157748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381 (or 2369 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 4157748 is about 2039.0556637816. The cubic root of 4157748 is about 160.8000037128.

The spelling of 4157748 in words is "four million, one hundred fifty-seven thousand, seven hundred forty-eight".