2272726 has 4 divisors (see below), whose sum is σ = 3409092. Its totient is φ = 1136362.

The previous prime is 2272691. The next prime is 2272727. The reversal of 2272726 is 6272722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6272722 = 2 ⋅3136361.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2272694 and 2272703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568180 + ... + 568183.

It is an arithmetic number, because the mean of its divisors is an integer number (852273).

2^2272726 is an apocalyptic number.

2272726 is a deficient number, since it is larger than the sum of its proper divisors (1136366).

2272726 is a wasteful number, since it uses less digits than its factorization.

2272726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136365.

The product of its digits is 4704, while the sum is 28.

The square root of 2272726 is about 1507.5563007729. The cubic root of 2272726 is about 131.4767701741.

The spelling of 2272726 in words is "two million, two hundred seventy-two thousand, seven hundred twenty-six".