22154464 has 12 divisors (see below), whose sum is σ = 43616664. Its totient is φ = 11077216.

The previous prime is 22154459. The next prime is 22154467. The reversal of 22154464 is 46445122.

It is a super-3 number, since 3×22154464³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346132 + ... + 346195.

It is an arithmetic number, because the mean of its divisors is an integer number (3634722).

Almost surely, 2^22154464 is an apocalyptic number.

It is an amenable number.

22154464 is a deficient number, since it is larger than the sum of its proper divisors (21462200).

22154464 is an equidigital number, since it uses as much as digits as its factorization.

22154464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692337 (or 692329 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 22154464 is about 4706.8528763920. The cubic root of 22154464 is about 280.8581833583.

Adding to 22154464 its reverse (46445122), we get a palindrome (68599586).

The spelling of 22154464 in words is "twenty-two million, one hundred fifty-four thousand, four hundred sixty-four".