20754432 has 78 divisors (see below), whose sum is σ = 60056412. Its totient is φ = 6905856.

The previous prime is 20754431. The next prime is 20754439. The reversal of 20754432 is 23445702.

It is a junction number, because it is equal to n+sod(n) for n = 20754396 and 20754405.

It is not an unprimeable number, because it can be changed into a prime (20754431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36583 + ... + 37145.

It is an arithmetic number, because the mean of its divisors is an integer number (769954).

Almost surely, 2^20754432 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 20754432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30028206).

20754432 is an abundant number, since it is smaller than the sum of its proper divisors (39301980).

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

20754432 is an equidigital number, since it uses as much as digits as its factorization.

20754432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 20754432 is about 4555.7032387986. The cubic root of 20754432 is about 274.8127960073.

The spelling of 20754432 in words is "twenty million, seven hundred fifty-four thousand, four hundred thirty-two".