22087407 has 16 divisors (see below), whose sum is σ = 30525440. Its totient is φ = 14191200.

The previous prime is 22087361. The next prime is 22087411. The reversal of 22087407 is 70478022.

It is not a de Polignac number, because 22087407 - 2⁶ = 22087343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22087427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40557 + ... + 41097.

It is an arithmetic number, because the mean of its divisors is an integer number (1907840).

Almost surely, 2^22087407 is an apocalyptic number.

22087407 is a deficient number, since it is larger than the sum of its proper divisors (8438033).

22087407 is a wasteful number, since it uses less digits than its factorization.

22087407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 22087407 is about 4699.7241408406. The cubic root of 22087407 is about 280.5745303523.

The spelling of 22087407 in words is "twenty-two million, eighty-seven thousand, four hundred seven".