22087340 has 36 divisors (see below), whose sum is σ = 50989008. Its totient is φ = 8030880.

The previous prime is 22087339. The next prime is 22087343. The reversal of 22087340 is 4378022.

It is not an unprimeable number, because it can be changed into a prime (22087343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2144 + ... + 6983.

Almost surely, 2^22087340 is an apocalyptic number.

22087340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22087340 is an abundant number, since it is smaller than the sum of its proper divisors (28901668).

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

22087340 is a wasteful number, since it uses less digits than its factorization.

22087340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158 (or 9145 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 22087340 is about 4699.7170127573. The cubic root of 22087340 is about 280.5742466535.

The spelling of 22087340 in words is "twenty-two million, eighty-seven thousand, three hundred forty".