20238442170 has 32 divisors (see below), whose sum is σ = 48584190528. Its totient is φ = 5395592448.

The previous prime is 20238442157. The next prime is 20238442219. The reversal of 20238442170 is 7124483202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44557 + ... + 206063.

It is an arithmetic number, because the mean of its divisors is an integer number (1518255954).

Almost surely, 2^20238442170 is an apocalyptic number.

20238442170 is an abundant number, since it is smaller than the sum of its proper divisors (28345748358).

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

20238442170 is a wasteful number, since it uses less digits than its factorization.

20238442170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165694.

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 20238442170 in words is "twenty billion, two hundred thirty-eight million, four hundred forty-two thousand, one hundred seventy".