20452401 has 12 divisors (see below), whose sum is σ = 29830528. Its totient is φ = 13501944.

The previous prime is 20452363. The next prime is 20452427. The reversal of 20452401 is 10425402.

It is not a de Polignac number, because 20452401 - 2⁷ = 20452273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10105 + ... + 11958.

Almost surely, 2^20452401 is an apocalyptic number.

It is an amenable number.

20452401 is a deficient number, since it is larger than the sum of its proper divisors (9378127).

20452401 is a wasteful number, since it uses less digits than its factorization.

20452401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22172 (or 22169 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20452401 is about 4522.4330840821. The cubic root of 20452401 is about 273.4731961518.

Adding to 20452401 its reverse (10425402), we get a palindrome (30877803).

The spelling of 20452401 in words is "twenty million, four hundred fifty-two thousand, four hundred one".