2247690 has 16 divisors (see below), whose sum is σ = 5394528. Its totient is φ = 599376.

The previous prime is 2247673. The next prime is 2247691. The reversal of 2247690 is 967422.

It is a happy number.

It is a super-2 number, since 2×2247690² = 10104220672200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 74923 = 2247690 / (2 + 2 + 4 + 7 + 6 + 9 + 0).

It is a d-powerful number, because it can be written as 2¹⁵ + 2²¹ + 4 + 7⁶ + 6² + 9² + 0 .

It is not an unprimeable number, because it can be changed into a prime (2247691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37432 + ... + 37491.

It is an arithmetic number, because the mean of its divisors is an integer number (337158).

2^2247690 is an apocalyptic number.

2247690 is an abundant number, since it is smaller than the sum of its proper divisors (3146838).

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

2247690 is a wasteful number, since it uses less digits than its factorization.

2247690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74933.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2247690 is about 1499.2298022651. The cubic root of 2247690 is about 130.9922105580.

The spelling of 2247690 in words is "two million, two hundred forty-seven thousand, six hundred ninety".