20838452 has 12 divisors (see below), whose sum is σ = 36553440. Its totient is φ = 10394616.

The previous prime is 20838451. The next prime is 20838469. The reversal of 20838452 is 25483802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20838451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4178 + ... + 7689.

It is an arithmetic number, because the mean of its divisors is an integer number (3046120).

Almost surely, 2^20838452 is an apocalyptic number.

It is an amenable number.

20838452 is a deficient number, since it is larger than the sum of its proper divisors (15714988).

20838452 is a wasteful number, since it uses less digits than its factorization.

20838452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12310 (or 12308 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 20838452 is about 4564.9153332784. The cubic root of 20838452 is about 275.1831375158.

The spelling of 20838452 in words is "twenty million, eight hundred thirty-eight thousand, four hundred fifty-two".