22034640 has 40 divisors (see below), whose sum is σ = 68308128. Its totient is φ = 5875840.

The previous prime is 22034629. The next prime is 22034689. The reversal of 22034640 is 4643022.

It is a tau number, because it is divible by the number of its divisors (40).

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, 45666 + ... + 46145.

Almost surely, 2^22034640 is an apocalyptic number.

22034640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22034640 is an abundant number, since it is smaller than the sum of its proper divisors (46273488).

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

22034640 is a wasteful number, since it uses less digits than its factorization.

22034640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91827 (or 91821 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 22034640 is about 4694.1069438180. The cubic root of 22034640 is about 280.3509205561.

Adding to 22034640 its reverse (4643022), we get a palindrome (26677662).

The spelling of 22034640 in words is "twenty-two million, thirty-four thousand, six hundred forty".