20013452 has 12 divisors (see below), whose sum is σ = 35058576. Its totient is φ = 9996720.

The previous prime is 20013443. The next prime is 20013463. The reversal of 20013452 is 25431002.

It is a self number, because there is not a number n which added to its sum of digits gives 20013452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3713 + ... + 7335.

It is an arithmetic number, because the mean of its divisors is an integer number (2921548).

Almost surely, 2^20013452 is an apocalyptic number.

It is an amenable number.

20013452 is a deficient number, since it is larger than the sum of its proper divisors (15045124).

20013452 is a wasteful number, since it uses less digits than its factorization.

20013452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008 (or 5006 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20013452 is about 4473.6396815121. The cubic root of 20013452 is about 271.5026052634.

Adding to 20013452 its reverse (25431002), we get a palindrome (45444454).

The spelling of 20013452 in words is "twenty million, thirteen thousand, four hundred fifty-two".