40143002442 has 64 divisors (see below), whose sum is σ = 81841415040. Its totient is φ = 13124837376.

The previous prime is 40143002371. The next prime is 40143002447. The reversal of 40143002442 is 24420034104.

It is a happy number.

40143002442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40143002442² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40143002447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39784434 + ... + 39785442.

It is an arithmetic number, because the mean of its divisors is an integer number (1278772110).

Almost surely, 2^40143002442 is an apocalyptic number.

40143002442 is an abundant number, since it is smaller than the sum of its proper divisors (41698412598).

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

40143002442 is a wasteful number, since it uses less digits than its factorization.

40143002442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40143002442 its reverse (24420034104), we get a palindrome (64563036546).

The spelling of 40143002442 in words is "forty billion, one hundred forty-three million, two thousand, four hundred forty-two".