20179242 has 24 divisors (see below), whose sum is σ = 43844580. Its totient is φ = 6707520.

The previous prime is 20179241. The next prime is 20179249. The reversal of 20179242 is 24297102.

It can be written as a sum of positive squares in 2 ways, for example, as 19793601 + 385641 = 4449^2 + 621^2 .

It is not an unprimeable number, because it can be changed into a prime (20179241) 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 11 ways as a sum of consecutive naturals, for example, 5992 + ... + 8732.

Almost surely, 2^20179242 is an apocalyptic number.

20179242 is an abundant number, since it is smaller than the sum of its proper divisors (23665338).

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

20179242 is a wasteful number, since it uses less digits than its factorization.

20179242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20179242 is about 4492.1311200810. The cubic root of 20179242 is about 272.2502472759.

The spelling of 20179242 in words is "twenty million, one hundred seventy-nine thousand, two hundred forty-two".