20946384 has 40 divisors (see below), whose sum is σ = 60125120. Its totient is φ = 6981984.

The previous prime is 20946383. The next prime is 20946391. The reversal of 20946384 is 48364902.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20946383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23812 + ... + 24675.

It is an arithmetic number, because the mean of its divisors is an integer number (1503128).

Almost surely, 2^20946384 is an apocalyptic number.

20946384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20946384 is an abundant number, since it is smaller than the sum of its proper divisors (39178736).

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

20946384 is a wasteful number, since it uses less digits than its factorization.

20946384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48504 (or 48492 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 20946384 is about 4576.7219710181. The cubic root of 20946384 is about 275.6574199451.

The spelling of 20946384 in words is "twenty million, nine hundred forty-six thousand, three hundred eighty-four".