20719452 has 24 divisors (see below), whose sum is σ = 52064656. Its totient is φ = 6375168.

The previous prime is 20719441. The next prime is 20719453. The reversal of 20719452 is 25491702.

20719452 is nontrivially palindromic in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20719453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66253 + ... + 66564.

Almost surely, 2^20719452 is an apocalyptic number.

It is an amenable number.

20719452 is an abundant number, since it is smaller than the sum of its proper divisors (31345204).

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

20719452 is a wasteful number, since it uses less digits than its factorization.

20719452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132837 (or 132835 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 20719452 is about 4551.8624759542. The cubic root of 20719452 is about 274.6583172387.

The spelling of 20719452 in words is "twenty million, seven hundred nineteen thousand, four hundred fifty-two".