20602242 has 16 divisors (see below), whose sum is σ = 45782880. Its totient is φ = 6867396.

The previous prime is 20602237. The next prime is 20602243. The reversal of 20602242 is 24220602.

It is a happy number.

20602242 is a `hidden beast` number, since 20 + 602 + 2 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20602243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190708 + ... + 190815.

It is an arithmetic number, because the mean of its divisors is an integer number (2861430).

Almost surely, 2^20602242 is an apocalyptic number.

20602242 is an abundant number, since it is smaller than the sum of its proper divisors (25180638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20602242 is a wasteful number, since it uses less digits than its factorization.

20602242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381534 (or 381528 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20602242 is about 4538.9692662542. The cubic root of 20602242 is about 274.1394232447.

Adding to 20602242 its reverse (24220602), we get a palindrome (44822844).

The spelling of 20602242 in words is "twenty million, six hundred two thousand, two hundred forty-two".