22025146 has 24 divisors (see below), whose sum is σ = 39113172. Its totient is φ = 9240000.

The previous prime is 22025141. The next prime is 22025147. The reversal of 22025146 is 64152022.

It can be written as a sum of positive squares in 2 ways, for example, as 20839225 + 1185921 = 4565^2 + 1089^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (22025141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355 + ... + 6646.

Almost surely, 2^22025146 is an apocalyptic number.

22025146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22025146 is a deficient number, since it is larger than the sum of its proper divisors (17088026).

22025146 is a wasteful number, since it uses less digits than its factorization.

22025146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038 (or 7027 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 22025146 is about 4693.0955668940. The cubic root of 22025146 is about 280.3106501152.

Adding to 22025146 its reverse (64152022), we get a palindrome (86177168).

The spelling of 22025146 in words is "twenty-two million, twenty-five thousand, one hundred forty-six".