20924046 has 72 divisors (see below), whose sum is σ = 53737320. Its totient is φ = 5844960.

The previous prime is 20924021. The next prime is 20924047. The reversal of 20924046 is 64042902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20924047) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27945 + ... + 28683.

Almost surely, 2^20924046 is an apocalyptic number.

20924046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20924046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26868660).

20924046 is an abundant number, since it is smaller than the sum of its proper divisors (32813274).

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

20924046 is a wasteful number, since it uses less digits than its factorization.

20924046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20924046 is about 4574.2809270966. The cubic root of 20924046 is about 275.5593946622.

Adding to 20924046 its reverse (64042902), we get a palindrome (84966948).

The spelling of 20924046 in words is "twenty million, nine hundred twenty-four thousand, forty-six".