22040655 has 64 divisors (see below), whose sum is σ = 44233728. Its totient is φ = 9123840.

The previous prime is 22040621. The next prime is 22040663. The reversal of 22040655 is 55604022.

22040655 = T₆₅₀ + T₆₅₁ + ... + T₇₄₀.

It is not a de Polignac number, because 22040655 - 2¹³ = 22032463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91335 + ... + 91575.

It is an arithmetic number, because the mean of its divisors is an integer number (691152).

Almost surely, 2^22040655 is an apocalyptic number.

22040655 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

22040655 is a wasteful number, since it uses less digits than its factorization.

22040655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 22040655 is about 4694.7475970493. The cubic root of 22040655 is about 280.3764282320.

Adding to 22040655 its reverse (55604022), we get a palindrome (77644677).

The spelling of 22040655 in words is "twenty-two million, forty thousand, six hundred fifty-five".