22281006 has 32 divisors (see below), whose sum is σ = 48787200. Its totient is φ = 6727680.

The previous prime is 22280989. The next prime is 22281023. The reversal of 22281006 is 60018222.

It is an interprime number because it is at equal distance from previous prime (22280989) and next prime (22281023).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28590 + ... + 29358.

It is an arithmetic number, because the mean of its divisors is an integer number (1524600).

Almost surely, 2^22281006 is an apocalyptic number.

22281006 is an abundant number, since it is smaller than the sum of its proper divisors (26506194).

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

22281006 is a wasteful number, since it uses less digits than its factorization.

22281006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 22281006 is about 4720.2760512495. The cubic root of 22281006 is about 281.3919042916.

Adding to 22281006 its reverse (60018222), we get a palindrome (82299228).

The spelling of 22281006 in words is "twenty-two million, two hundred eighty-one thousand, six".