2272906 has 8 divisors (see below), whose sum is σ = 3557664. Its totient is φ = 1087020.

The previous prime is 2272903. The next prime is 2272931. The reversal of 2272906 is 6092722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2272906² = 10332203369672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2272903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24660 + ... + 24751.

It is an arithmetic number, because the mean of its divisors is an integer number (444708).

2^2272906 is an apocalyptic number.

2272906 is the 954-th centered pentagonal number.

2272906 is a deficient number, since it is larger than the sum of its proper divisors (1284758).

2272906 is a wasteful number, since it uses less digits than its factorization.

2272906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49436.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2272906 is about 1507.6159988538. The cubic root of 2272906 is about 131.4802410712.

The spelling of 2272906 in words is "two million, two hundred seventy-two thousand, nine hundred six".