42254434020 has 48 divisors (see below), whose sum is σ = 124539387840. Its totient is φ = 10674804096.

The previous prime is 42254434009. The next prime is 42254434043. The reversal of 42254434020 is 2043445224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18531507 + ... + 18533786.

It is an arithmetic number, because the mean of its divisors is an integer number (2594570580).

Almost surely, 2^42254434020 is an apocalyptic number.

It is an amenable number.

42254434020 is an abundant number, since it is smaller than the sum of its proper divisors (82284953820).

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

42254434020 is a wasteful number, since it uses less digits than its factorization.

42254434020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37065324 (or 37065322 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 42254434020 its reverse (2043445224), we get a palindrome (44297879244).

The spelling of 42254434020 in words is "forty-two billion, two hundred fifty-four million, four hundred thirty-four thousand, twenty".