4072281 has 4 divisors (see below), whose sum is σ = 5429712. Its totient is φ = 2714852.

The previous prime is 4072279. The next prime is 4072291. The reversal of 4072281 is 1822704.

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 4072281 - 2¹ = 4072279 is a prime.

It is a super-2 number, since 2×4072281² = 33166945085922, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (4072291) 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, 678711 + ... + 678716.

It is an arithmetic number, because the mean of its divisors is an integer number (1357428).

Almost surely, 2^4072281 is an apocalyptic number.

It is an amenable number.

4072281 is a deficient number, since it is larger than the sum of its proper divisors (1357431).

4072281 is a wasteful number, since it uses less digits than its factorization.

4072281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357430.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 4072281 is about 2017.9893458589. The cubic root of 4072281 is about 159.6905607860.

Adding to 4072281 its reverse (1822704), we get a palindrome (5894985).

The spelling of 4072281 in words is "four million, seventy-two thousand, two hundred eighty-one".