2117426 has 16 divisors (see below), whose sum is σ = 3345408. Its totient is φ = 1003200.

The previous prime is 2117419. The next prime is 2117429. The reversal of 2117426 is 6247112.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117429) 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, 8666 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (209088).

2^2117426 is an apocalyptic number.

2117426 is a deficient number, since it is larger than the sum of its proper divisors (1227982).

2117426 is a wasteful number, since it uses less digits than its factorization.

2117426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457.

The product of its digits is 672, while the sum is 23.

The square root of 2117426 is about 1455.1377941625. The cubic root of 2117426 is about 128.4111534907.

The spelling of 2117426 in words is "two million, one hundred seventeen thousand, four hundred twenty-six".