4257750 has 64 divisors (see below), whose sum is σ = 12160512. Its totient is φ = 972000.

The previous prime is 4257749. The next prime is 4257763. The reversal of 4257750 is 577524.

4257750 = T₁₉₆ + T₁₉₇ + ... + T₃₂₀.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4845 + ... + 5655.

It is an arithmetic number, because the mean of its divisors is an integer number (190008).

Almost surely, 2^4257750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4257750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6080256).

4257750 is an abundant number, since it is smaller than the sum of its proper divisors (7902762).

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

4257750 is a wasteful number, since it uses less digits than its factorization.

4257750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 4257750 is about 2063.4316077835. The cubic root of 4257750 is about 162.0789890670.

The spelling of 4257750 in words is "four million, two hundred fifty-seven thousand, seven hundred fifty".