22154496 has 144 divisors (see below), whose sum is σ = 72799104. Its totient is φ = 5824512.

The previous prime is 22154467. The next prime is 22154501. The reversal of 22154496 is 69445122.

22154496 is a nontrivial binomial coefficient, being equal to C(6657, 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69730 + ... + 70046.

Almost surely, 2^22154496 is an apocalyptic number.

22154496 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22154496 is the 6656-th triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22154496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36399552).

22154496 is an abundant number, since it is smaller than the sum of its proper divisors (50644608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22154496 is a wasteful number, since it uses less digits than its factorization.

22154496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 342 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 22154496 is about 4706.8562756898. The cubic root of 22154496 is about 280.8583185825.

The spelling of 22154496 in words is "twenty-two million, one hundred fifty-four thousand, four hundred ninety-six".