2273764 has 6 divisors (see below), whose sum is σ = 3979094. Its totient is φ = 1136880.

The previous prime is 2273759. The next prime is 2273771. The reversal of 2273764 is 4673722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 736164 = 1240^2 + 858^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284217 + ... + 284224.

2^2273764 is an apocalyptic number.

It is an amenable number.

2273764 is a deficient number, since it is larger than the sum of its proper divisors (1705330).

2273764 is a wasteful number, since it uses less digits than its factorization.

2273764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568445 (or 568443 counting only the distinct ones).

The product of its digits is 14112, while the sum is 31.

The square root of 2273764 is about 1507.9005272232. The cubic root of 2273764 is about 131.4967831624.

It can be divided in two parts, 22737 and 64, that added together give a square (22801 = 151²).

The spelling of 2273764 in words is "two million, two hundred seventy-three thousand, seven hundred sixty-four".