20797148 has 12 divisors (see below), whose sum is σ = 36661632. Its totient is φ = 10322400.

The previous prime is 20797141. The next prime is 20797151. The reversal of 20797148 is 84179702.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20797141) 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, 18428 + ... + 19523.

It is an arithmetic number, because the mean of its divisors is an integer number (3055136).

Almost surely, 2^20797148 is an apocalyptic number.

It is an amenable number.

20797148 is a deficient number, since it is larger than the sum of its proper divisors (15864484).

20797148 is a wasteful number, since it uses less digits than its factorization.

20797148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38092 (or 38090 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 20797148 is about 4560.3890184939. The cubic root of 20797148 is about 275.0012033005.

The spelling of 20797148 in words is "twenty million, seven hundred ninety-seven thousand, one hundred forty-eight".