2273964 has 96 divisors (see below), whose sum is σ = 6967296. Its totient is φ = 559680.

The previous prime is 2273963. The next prime is 2273981. The reversal of 2273964 is 4693722.

2273964 = T₈₉ + T₉₀ + ... + T₂₄₂.

2273964 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2273963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21199 + ... + 21305.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2^2273964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2273964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3483648).

2273964 is an abundant number, since it is smaller than the sum of its proper divisors (4693332).

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

2273964 is a wasteful number, since it uses less digits than its factorization.

2273964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 153 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 2273964 is about 1507.9668431368. The cubic root of 2273964 is about 131.5006385296.

The spelling of 2273964 in words is "two million, two hundred seventy-three thousand, nine hundred sixty-four".