20089406 has 16 divisors (see below), whose sum is σ = 30612816. Its totient is φ = 9886656.

The previous prime is 20089397. The next prime is 20089417. The reversal of 20089406 is 60498002.

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, 42785 + ... + 43251.

It is an arithmetic number, because the mean of its divisors is an integer number (1913301).

Almost surely, 2^20089406 is an apocalyptic number.

20089406 is a deficient number, since it is larger than the sum of its proper divisors (10523410).

20089406 is a wasteful number, since it uses less digits than its factorization.

20089406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20089406 is about 4482.1207034171. The cubic root of 20089406 is about 271.8456358122.

The spelling of 20089406 in words is "twenty million, eighty-nine thousand, four hundred six".