4280981 has 4 divisors (see below), whose sum is σ = 4353600. Its totient is φ = 4208364.

The previous prime is 4280971. The next prime is 4280999. The reversal of 4280981 is 1890824.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4280981 - 2⁶ = 4280917 is a prime.

It is a super-2 number, since 2×4280981² = 36653596644722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280971) 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, 36221 + ... + 36338.

It is an arithmetic number, because the mean of its divisors is an integer number (1088400).

Almost surely, 2^4280981 is an apocalyptic number.

It is an amenable number.

4280981 is a deficient number, since it is larger than the sum of its proper divisors (72619).

4280981 is an equidigital number, since it uses as much as digits as its factorization.

4280981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72618.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 4280981 is about 2069.0531650975. The cubic root of 4280981 is about 162.3732313091.

The spelling of 4280981 in words is "four million, two hundred eighty thousand, nine hundred eighty-one".