42251200340 has 12 divisors (see below), whose sum is σ = 88727520756. Its totient is φ = 16900480128.

The previous prime is 42251200339. The next prime is 42251200351. The reversal of 42251200340 is 4300215224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7457013316 + 34794187024 = 86354^2 + 186532^2 .

It is a super-2 number, since 2×42251200340² (a number of 22 digits) contains 22 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1056279989 + ... + 1056280028.

It is an arithmetic number, because the mean of its divisors is an integer number (7393960063).

Almost surely, 2^42251200340 is an apocalyptic number.

It is an amenable number.

42251200340 is an abundant number, since it is smaller than the sum of its proper divisors (46476320416).

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

42251200340 is a wasteful number, since it uses less digits than its factorization.

42251200340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112560026 (or 2112560024 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 42251200340 its reverse (4300215224), we get a palindrome (46551415564).

The spelling of 42251200340 in words is "forty-two billion, two hundred fifty-one million, two hundred thousand, three hundred forty".