20413524 has 24 divisors (see below), whose sum is σ = 50139040. Its totient is φ = 6446304.

The previous prime is 20413511. The next prime is 20413537. The reversal of 20413524 is 42531402.

It is an interprime number because it is at equal distance from previous prime (20413511) and next prime (20413537).

It is a self number, because there is not a number n which added to its sum of digits gives 20413524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44539 + ... + 44994.

Almost surely, 2^20413524 is an apocalyptic number.

It is an amenable number.

20413524 is an abundant number, since it is smaller than the sum of its proper divisors (29725516).

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

20413524 is a wasteful number, since it uses less digits than its factorization.

20413524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89559 (or 89557 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20413524 is about 4518.1328001731. The cubic root of 20413524 is about 273.2998088304.

Adding to 20413524 its reverse (42531402), we get a palindrome (62944926).

It can be divided in two parts, 2041 and 3524, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 20413524 in words is "twenty million, four hundred thirteen thousand, five hundred twenty-four".