2280421 has 16 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 1857600.

The previous prime is 2280413. The next prime is 2280433. The reversal of 2280421 is 1240822.

It is a cyclic number.

It is not a de Polignac number, because 2280421 - 2³ = 2280413 is a prime.

It is a Duffinian number.

2280421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2280401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5076 + ... + 5506.

It is an arithmetic number, because the mean of its divisors is an integer number (172368).

2^2280421 is an apocalyptic number.

It is an amenable number.

2280421 is a deficient number, since it is larger than the sum of its proper divisors (477467).

2280421 is a wasteful number, since it uses less digits than its factorization.

2280421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2280421 is about 1510.1062876500. The cubic root of 2280421 is about 131.6249877872.

It can be divided in two parts, 2280 and 421, that added together give a triangular number (2701 = T₇₃).

The spelling of 2280421 in words is "two million, two hundred eighty thousand, four hundred twenty-one".