20364996 has 12 divisors (see below), whose sum is σ = 47518352. Its totient is φ = 6788328.

The previous prime is 20364991. The next prime is 20365003. The reversal of 20364996 is 69946302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20364991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848530 + ... + 848553.

Almost surely, 2^20364996 is an apocalyptic number.

It is an amenable number.

20364996 is an abundant number, since it is smaller than the sum of its proper divisors (27153356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20364996 is a wasteful number, since it uses less digits than its factorization.

20364996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697090 (or 1697088 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 20364996 is about 4512.7592446307. The cubic root of 20364996 is about 273.0830698915.

The spelling of 20364996 in words is "twenty million, three hundred sixty-four thousand, nine hundred ninety-six".