2281404 has 24 divisors (see below), whose sum is σ = 5454288. Its totient is φ = 741760.

The previous prime is 2281403. The next prime is 2281429. The reversal of 2281404 is 4041822.

It is a super-2 number, since 2×2281404² = 10409608422432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1827 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (227262).

2^2281404 is an apocalyptic number.

It is an amenable number.

2281404 is an abundant number, since it is smaller than the sum of its proper divisors (3172884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2281404 is a wasteful number, since it uses less digits than its factorization.

2281404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685 (or 4683 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2281404 is about 1510.4317263617. The cubic root of 2281404 is about 131.6438978592.

The spelling of 2281404 in words is "two million, two hundred eighty-one thousand, four hundred four".