20967190 has 16 divisors (see below), whose sum is σ = 37834128. Its totient is φ = 8366176.

The previous prime is 20967161. The next prime is 20967209. The reversal of 20967190 is 9176902.

It is a super-2 number, since 2×20967190² = 879246112992200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2064 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (2364633).

Almost surely, 2^20967190 is an apocalyptic number.

20967190 is a deficient number, since it is larger than the sum of its proper divisors (16866938).

20967190 is a wasteful number, since it uses less digits than its factorization.

20967190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 20967190 is about 4578.9944310951. The cubic root of 20967190 is about 275.7486597245.

The spelling of 20967190 in words is "twenty million, nine hundred sixty-seven thousand, one hundred ninety".