20496924 has 72 divisors (see below), whose sum is σ = 59696000. Its totient is φ = 5808672.

The previous prime is 20496923. The next prime is 20496937. The reversal of 20496924 is 42969402.

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 (20496923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40827 + ... + 41325.

Almost surely, 2^20496924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20496924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29848000).

20496924 is an abundant number, since it is smaller than the sum of its proper divisors (39199076).

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

20496924 is a wasteful number, since it uses less digits than its factorization.

20496924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 20496924 is about 4527.3528689511. The cubic root of 20496924 is about 273.6714943459.

Adding to 20496924 its product of nonzero digits (31104), we get a triangular number (20528028 = T₆₄₀₇).

The spelling of 20496924 in words is "twenty million, four hundred ninety-six thousand, nine hundred twenty-four".