2272658 has 4 divisors (see below), whose sum is σ = 3408990. Its totient is φ = 1136328.

The previous prime is 2272657. The next prime is 2272667. The reversal of 2272658 is 8562722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1545049 + 727609 = 1243^2 + 853^2 .

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁶ + 7⁴ + 2¹⁹ + 6⁸ + 5⁴ + 8² .

It is not an unprimeable number, because it can be changed into a prime (2272657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568163 + ... + 568166.

2^2272658 is an apocalyptic number.

2272658 is a deficient number, since it is larger than the sum of its proper divisors (1136332).

2272658 is a wasteful number, since it uses less digits than its factorization.

2272658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136331.

The product of its digits is 13440, while the sum is 32.

The square root of 2272658 is about 1507.5337475493. The cubic root of 2272658 is about 131.4754588987.

Subtracting 2272658 from its reverse (8562722), we obtain a square (6290064 = 2508²).

The spelling of 2272658 in words is "two million, two hundred seventy-two thousand, six hundred fifty-eight".