20197364 has 12 divisors (see below), whose sum is σ = 38558688. Its totient is φ = 9180600.

The previous prime is 20197349. The next prime is 20197391. The reversal of 20197364 is 46379102.

It is a self number, because there is not a number n which added to its sum of digits gives 20197364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229472 + ... + 229559.

It is an arithmetic number, because the mean of its divisors is an integer number (3213224).

Almost surely, 2^20197364 is an apocalyptic number.

It is an amenable number.

20197364 is a deficient number, since it is larger than the sum of its proper divisors (18361324).

20197364 is a wasteful number, since it uses less digits than its factorization.

20197364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459046 (or 459044 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 20197364 is about 4494.1477501302. The cubic root of 20197364 is about 272.3317211457.

The spelling of 20197364 in words is "twenty million, one hundred ninety-seven thousand, three hundred sixty-four".