20401024242 has 32 divisors (see below), whose sum is σ = 44816901120. Its totient is φ = 6162322320.

The previous prime is 20401024229. The next prime is 20401024247. The reversal of 20401024242 is 24242010402.

It is not an unprimeable number, because it can be changed into a prime (20401024247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3887734 + ... + 3892977.

It is an arithmetic number, because the mean of its divisors is an integer number (1400528160).

Almost surely, 2^20401024242 is an apocalyptic number.

20401024242 is an abundant number, since it is smaller than the sum of its proper divisors (24415876878).

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

20401024242 is a wasteful number, since it uses less digits than its factorization.

20401024242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780758.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20401024242 its reverse (24242010402), we get a palindrome (44643034644).

The spelling of 20401024242 in words is "twenty billion, four hundred one million, twenty-four thousand, two hundred forty-two".