20061432 has 80 divisors (see below), whose sum is σ = 57020040. Its totient is φ = 6588864.

The previous prime is 20061427. The next prime is 20061439. The reversal of 20061432 is 23416002.

It is a happy number.

20061432 is a `hidden beast` number, since 20 + 0 + 614 + 32 = 666.

It is a super-2 number, since 2×20061432² = 804922107781248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20061439) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53598 + ... + 53970.

Almost surely, 2^20061432 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 20061432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28510020).

20061432 is an abundant number, since it is smaller than the sum of its proper divisors (36958608).

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

20061432 is a wasteful number, since it uses less digits than its factorization.

20061432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20061432 is about 4478.9989953113. The cubic root of 20061432 is about 271.7193977626.

Adding to 20061432 its reverse (23416002), we get a palindrome (43477434).

The spelling of 20061432 in words is "twenty million, sixty-one thousand, four hundred thirty-two".