20246624 has 24 divisors (see below), whose sum is σ = 41595120. Its totient is φ = 9682816.

The previous prime is 20246621. The next prime is 20246657. The reversal of 20246624 is 42664202.

It is a junction number, because it is equal to n+sod(n) for n = 20246593 and 20246602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20246621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13019 + ... + 14490.

It is an arithmetic number, because the mean of its divisors is an integer number (1733130).

Almost surely, 2^20246624 is an apocalyptic number.

It is an amenable number.

20246624 is an abundant number, since it is smaller than the sum of its proper divisors (21348496).

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

20246624 is a wasteful number, since it uses less digits than its factorization.

20246624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27542 (or 27534 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 20246624 is about 4499.6248732533. The cubic root of 20246624 is about 272.5529409247.

The spelling of 20246624 in words is "twenty million, two hundred forty-six thousand, six hundred twenty-four".