2245947 has 8 divisors (see below), whose sum is σ = 3266880. Its totient is φ = 1361160.

The previous prime is 2245931. The next prime is 2245951. The reversal of 2245947 is 7495422.

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

It is not a de Polignac number, because 2245947 - 2⁴ = 2245931 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 68059 = 2245947 / (2 + 2 + 4 + 5 + 9 + 4 + 7).

It is a d-powerful number, because it can be written as 2¹³ + 2²¹ + 4 + 5 + 9⁴ + 4⁷ + 7⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33997 + ... + 34062.

It is an arithmetic number, because the mean of its divisors is an integer number (408360).

2^2245947 is an apocalyptic number.

2245947 is a deficient number, since it is larger than the sum of its proper divisors (1020933).

2245947 is a wasteful number, since it uses less digits than its factorization.

2245947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68073.

The product of its digits is 20160, while the sum is 33.

The square root of 2245947 is about 1498.6483910511. The cubic root of 2245947 is about 130.9583419393.

The spelling of 2245947 in words is "two million, two hundred forty-five thousand, nine hundred forty-seven".