22007420 has 24 divisors (see below), whose sum is σ = 46309200. Its totient is φ = 8785152.

The previous prime is 22007417. The next prime is 22007437. The reversal of 22007420 is 2470022.

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, 14036 + ... + 15524.

It is an arithmetic number, because the mean of its divisors is an integer number (1929550).

Almost surely, 2^22007420 is an apocalyptic number.

22007420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22007420 is an abundant number, since it is smaller than the sum of its proper divisors (24301780).

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

22007420 is a wasteful number, since it uses less digits than its factorization.

22007420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237 (or 2235 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 22007420 is about 4691.2066677988. The cubic root of 22007420 is about 280.2354312395.

Adding to 22007420 its reverse (2470022), we get a palindrome (24477442).

The spelling of 22007420 in words is "twenty-two million, seven thousand, four hundred twenty".