4249851 has 4 divisors (see below), whose sum is σ = 5666472. Its totient is φ = 2833232.

The previous prime is 4249831. The next prime is 4249853. The reversal of 4249851 is 1589424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4249851 - 2⁷ = 4249723 is a prime.

It is a super-2 number, since 2×4249851² = 36122467044402, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4249853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708306 + ... + 708311.

It is an arithmetic number, because the mean of its divisors is an integer number (1416618).

Almost surely, 2^4249851 is an apocalyptic number.

4249851 is a deficient number, since it is larger than the sum of its proper divisors (1416621).

4249851 is a wasteful number, since it uses less digits than its factorization.

4249851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416620.

The product of its digits is 11520, while the sum is 33.

The square root of 4249851 is about 2061.5166746840. The cubic root of 4249851 is about 161.9786970921.

The spelling of 4249851 in words is "four million, two hundred forty-nine thousand, eight hundred fifty-one".