20041542 has 24 divisors (see below), whose sum is σ = 45709560. Its totient is φ = 6328800.

The previous prime is 20041537. The next prime is 20041573. The reversal of 20041542 is 24514002.

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

It is a congruent number.

It is an unprimeable number.

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, 28959 + ... + 29642.

It is an arithmetic number, because the mean of its divisors is an integer number (1904565).

Almost surely, 2^20041542 is an apocalyptic number.

20041542 is an abundant number, since it is smaller than the sum of its proper divisors (25668018).

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

20041542 is a wasteful number, since it uses less digits than its factorization.

20041542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58628 (or 58625 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20041542 is about 4476.7780825053. The cubic root of 20041542 is about 271.6295689157.

Adding to 20041542 its reverse (24514002), we get a palindrome (44555544).

The spelling of 20041542 in words is "twenty million, forty-one thousand, five hundred forty-two".