22150464 has 56 divisors (see below), whose sum is σ = 66982848. Its totient is φ = 6328320.

The previous prime is 22150423. The next prime is 22150481. The reversal of 22150464 is 46405122.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6897 + ... + 9584.

Almost surely, 2^22150464 is an apocalyptic number.

22150464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22150464 is an abundant number, since it is smaller than the sum of its proper divisors (44832384).

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

22150464 is a wasteful number, since it uses less digits than its factorization.

22150464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16503 (or 16493 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22150464 is about 4706.4279448431. The cubic root of 22150464 is about 280.8412793106.

Adding to 22150464 its reverse (46405122), we get a palindrome (68555586).

The spelling of 22150464 in words is "twenty-two million, one hundred fifty thousand, four hundred sixty-four".