22154630 has 8 divisors (see below), whose sum is σ = 39878352. Its totient is φ = 8861848.

The previous prime is 22154617. The next prime is 22154641. The reversal of 22154630 is 3645122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22154596 and 22154605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107722 + ... + 1107741.

It is an arithmetic number, because the mean of its divisors is an integer number (4984794).

Almost surely, 2^22154630 is an apocalyptic number.

22154630 is a deficient number, since it is larger than the sum of its proper divisors (17723722).

22154630 is a wasteful number, since it uses less digits than its factorization.

22154630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215470.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22154630 is about 4706.8705102223. The cubic root of 22154630 is about 280.8588848323.

Adding to 22154630 its reverse (3645122), we get a palindrome (25799752).

The spelling of 22154630 in words is "twenty-two million, one hundred fifty-four thousand, six hundred thirty".