22471642 has 16 divisors (see below), whose sum is σ = 35985600. Its totient is φ = 10493280.

The previous prime is 22471633. The next prime is 22471643. The reversal of 22471642 is 24617422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22471642.

It is not an unprimeable number, because it can be changed into a prime (22471643) 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, 1467 + ... + 6862.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 2^22471642 is an apocalyptic number.

22471642 is a deficient number, since it is larger than the sum of its proper divisors (13513958).

22471642 is a wasteful number, since it uses less digits than its factorization.

22471642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421.

The product of its digits is 5376, while the sum is 28.

The square root of 22471642 is about 4740.4263521333. The cubic root of 22471642 is about 282.1921548030.

The spelling of 22471642 in words is "twenty-two million, four hundred seventy-one thousand, six hundred forty-two".