40251142230 has 128 divisors (see below), whose sum is σ = 111010798080. Its totient is φ = 9257794560.

The previous prime is 40251142229. The next prime is 40251142247. The reversal of 40251142230 is 3224115204.

It is a self number, because there is not a number n which added to its sum of digits gives 40251142230.

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 63 ways as a sum of consecutive naturals, for example, 503725 + ... + 578135.

It is an arithmetic number, because the mean of its divisors is an integer number (867271860).

Almost surely, 2^40251142230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40251142230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55505399040).

40251142230 is an abundant number, since it is smaller than the sum of its proper divisors (70759655850).

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

40251142230 is a wasteful number, since it uses less digits than its factorization.

40251142230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74526.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 40251142230 its reverse (3224115204), we get a palindrome (43475257434).

The spelling of 40251142230 in words is "forty billion, two hundred fifty-one million, one hundred forty-two thousand, two hundred thirty".