3724281 has 12 divisors (see below), whose sum is σ = 5868720. Its totient is φ = 2257080.

The previous prime is 3724277. The next prime is 3724289. The reversal of 3724281 is 1824273.

It is not a de Polignac number, because 3724281 - 2² = 3724277 is a prime.

It is a super-2 number, since 2×3724281² = 27740537933922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3724289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18711 + ... + 18908.

It is an arithmetic number, because the mean of its divisors is an integer number (489060).

Almost surely, 2^3724281 is an apocalyptic number.

It is an amenable number.

3724281 is a deficient number, since it is larger than the sum of its proper divisors (2144439).

3724281 is a wasteful number, since it uses less digits than its factorization.

3724281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37636 (or 37633 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 3724281 is about 1929.8396306429. The cubic root of 3724281 is about 155.0056328165.

It can be divided in two parts, 3724 and 281, that added together give a triangular number (4005 = T₈₉).

The spelling of 3724281 in words is "three million, seven hundred twenty-four thousand, two hundred eighty-one".