22040535 has 48 divisors (see below), whose sum is σ = 40037760. Its totient is φ = 10267200.

The previous prime is 22040533. The next prime is 22040569. The reversal of 22040535 is 53504022.

It is not a de Polignac number, because 22040535 - 2¹ = 22040533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158496 + ... + 158634.

It is an arithmetic number, because the mean of its divisors is an integer number (834120).

Almost surely, 2^22040535 is an apocalyptic number.

22040535 is a deficient number, since it is larger than the sum of its proper divisors (17997225).

22040535 is a wasteful number, since it uses less digits than its factorization.

22040535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22040535 is about 4694.7348167921. The cubic root of 22040535 is about 280.3759193960.

Adding to 22040535 its reverse (53504022), we get a palindrome (75544557).

It can be divided in two parts, 220 and 40535, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 22040535 in words is "twenty-two million, forty thousand, five hundred thirty-five".