20011652 has 12 divisors (see below), whose sum is σ = 37080540. Its totient is φ = 9417216.

The previous prime is 20011631. The next prime is 20011657. The reversal of 20011652 is 25611002.

It can be written as a sum of positive squares in 2 ways, for example, as 5692996 + 14318656 = 2386^2 + 3784^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20011652.

It is not an unprimeable number, because it can be changed into a prime (20011657) 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, 147077 + ... + 147212.

It is an arithmetic number, because the mean of its divisors is an integer number (3090045).

Almost surely, 2^20011652 is an apocalyptic number.

It is an amenable number.

20011652 is a deficient number, since it is larger than the sum of its proper divisors (17068888).

20011652 is a wasteful number, since it uses less digits than its factorization.

20011652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294310 (or 294308 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20011652 is about 4473.4384985154. The cubic root of 20011652 is about 271.4944654159.

Adding to 20011652 its reverse (25611002), we get a palindrome (45622654).

The spelling of 20011652 in words is "twenty million, eleven thousand, six hundred fifty-two".