20432014040 has 64 divisors (see below), whose sum is σ = 48890671200. Its totient is φ = 7662809088.

The previous prime is 20432014027. The next prime is 20432014049. The reversal of 20432014040 is 4041023402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432014049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64859 + ... + 212298.

Almost surely, 2^20432014040 is an apocalyptic number.

20432014040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20432014040 is an abundant number, since it is smaller than the sum of its proper divisors (28458657160).

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

20432014040 is a wasteful number, since it uses less digits than its factorization.

20432014040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277284 (or 277280 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20432014040 its reverse (4041023402), we get a palindrome (24473037442).

The spelling of 20432014040 in words is "twenty billion, four hundred thirty-two million, fourteen thousand, forty".