20353748 has 12 divisors (see below), whose sum is σ = 36203412. Its totient is φ = 10009920.

The previous prime is 20353741. The next prime is 20353759. The reversal of 20353748 is 84735302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 976144 + 19377604 = 988^2 + 4402^2 .

It is a hoax number, since the sum of its digits (32) 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 (20353741) 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, 41465 + ... + 41952.

It is an arithmetic number, because the mean of its divisors is an integer number (3016951).

Almost surely, 2^20353748 is an apocalyptic number.

It is an amenable number.

20353748 is a deficient number, since it is larger than the sum of its proper divisors (15849664).

20353748 is a wasteful number, since it uses less digits than its factorization.

20353748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83482 (or 83480 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20353748 is about 4511.5128283094. The cubic root of 20353748 is about 273.0327841945.

The spelling of 20353748 in words is "twenty million, three hundred fifty-three thousand, seven hundred forty-eight".