20934744 has 16 divisors (see below), whose sum is σ = 52336920. Its totient is φ = 6978240.

The previous prime is 20934743. The next prime is 20934779. The reversal of 20934744 is 44743902.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20934743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436117 + ... + 436164.

Almost surely, 2^20934744 is an apocalyptic number.

20934744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20934744 is an abundant number, since it is smaller than the sum of its proper divisors (31402176).

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

20934744 is a wasteful number, since it uses less digits than its factorization.

20934744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872290 (or 872286 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 20934744 is about 4575.4501417893. The cubic root of 20934744 is about 275.6063491270.

The spelling of 20934744 in words is "twenty million, nine hundred thirty-four thousand, seven hundred forty-four".