20063040 has 56 divisors (see below), whose sum is σ = 63703200. Its totient is φ = 5349888.

The previous prime is 20063039. The next prime is 20063047. The reversal of 20063040 is 4036002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20063047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9490 + ... + 11409.

Almost surely, 2^20063040 is an apocalyptic number.

20063040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20063040 is an abundant number, since it is smaller than the sum of its proper divisors (43640160).

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

20063040 is a wasteful number, since it uses less digits than its factorization.

20063040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20919 (or 20909 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20063040 is about 4479.1784961084. The cubic root of 20063040 is about 271.7266573493.

Adding to 20063040 its reverse (4036002), we get a palindrome (24099042).

The spelling of 20063040 in words is "twenty million, sixty-three thousand, forty".