22087406 has 16 divisors (see below), whose sum is σ = 37715328. Its totient is φ = 9603000.

The previous prime is 22087361. The next prime is 22087411. The reversal of 22087406 is 60478022.

It is a Curzon number.

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, 21320 + ... + 22331.

It is an arithmetic number, because the mean of its divisors is an integer number (2357208).

Almost surely, 2^22087406 is an apocalyptic number.

22087406 is a deficient number, since it is larger than the sum of its proper divisors (15627922).

22087406 is a wasteful number, since it uses less digits than its factorization.

22087406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43687.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 22087406 is about 4699.7240344514. The cubic root of 22087406 is about 280.5745261179.

The spelling of 22087406 in words is "twenty-two million, eighty-seven thousand, four hundred six".