22040654 has 4 divisors (see below), whose sum is σ = 33060984. Its totient is φ = 11020326.

The previous prime is 22040621. The next prime is 22040663. The reversal of 22040654 is 45604022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45604022 = 2 ⋅22802011.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510162 + ... + 5510165.

It is an arithmetic number, because the mean of its divisors is an integer number (8265246).

Almost surely, 2^22040654 is an apocalyptic number.

22040654 is a deficient number, since it is larger than the sum of its proper divisors (11020330).

22040654 is a wasteful number, since it uses less digits than its factorization.

22040654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020329.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 22040654 is about 4694.7474905473. The cubic root of 22040654 is about 280.3764239917.

Adding to 22040654 its reverse (45604022), we get a palindrome (67644676).

The spelling of 22040654 in words is "twenty-two million, forty thousand, six hundred fifty-four".