20761372 has 12 divisors (see below), whose sum is σ = 37018296. Its totient is φ = 10184720.

The previous prime is 20761343. The next prime is 20761373. The reversal of 20761372 is 27316702.

It is a self number, because there is not a number n which added to its sum of digits gives 20761372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20761373) 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 3 ways as a sum of consecutive naturals, for example, 48754 + ... + 49177.

It is an arithmetic number, because the mean of its divisors is an integer number (3084858).

Almost surely, 2^20761372 is an apocalyptic number.

It is an amenable number.

20761372 is a deficient number, since it is larger than the sum of its proper divisors (16256924).

20761372 is a wasteful number, since it uses less digits than its factorization.

20761372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97988 (or 97986 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 20761372 is about 4556.4648577598. The cubic root of 20761372 is about 274.8434238151.

The spelling of 20761372 in words is "twenty million, seven hundred sixty-one thousand, three hundred seventy-two".