20016942 has 16 divisors (see below), whose sum is σ = 43673472. Its totient is φ = 6065720.

The previous prime is 20016911. The next prime is 20016943. The reversal of 20016942 is 24961002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016943) 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, 151578 + ... + 151709.

It is an arithmetic number, because the mean of its divisors is an integer number (2729592).

Almost surely, 2^20016942 is an apocalyptic number.

20016942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20016942 is an abundant number, since it is smaller than the sum of its proper divisors (23656530).

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

20016942 is a wasteful number, since it uses less digits than its factorization.

20016942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303303.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20016942 is about 4474.0297272146. The cubic root of 20016942 is about 271.5183861328.

Adding to 20016942 its reverse (24961002), we get a palindrome (44977944).

The spelling of 20016942 in words is "twenty million, sixteen thousand, nine hundred forty-two".