4280381 has 4 divisors (see below), whose sum is σ = 4891872. Its totient is φ = 3668892.

The previous prime is 4280363. The next prime is 4280383. The reversal of 4280381 is 1830824.

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 4280381 - 2²² = 86077 is a prime.

It is a super-2 number, since 2×4280381² = 36643323010322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4280381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280383) 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, 305735 + ... + 305748.

It is an arithmetic number, because the mean of its divisors is an integer number (1222968).

Almost surely, 2^4280381 is an apocalyptic number.

It is an amenable number.

4280381 is a deficient number, since it is larger than the sum of its proper divisors (611491).

4280381 is an equidigital number, since it uses as much as digits as its factorization.

4280381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611490.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 4280381 is about 2068.9081661591. The cubic root of 4280381 is about 162.3656451592.

The spelling of 4280381 in words is "four million, two hundred eighty thousand, three hundred eighty-one".