40243004142 has 32 divisors (see below), whose sum is σ = 90830609280. Its totient is φ = 11774337120.

The previous prime is 40243004101. The next prime is 40243004149. The reversal of 40243004142 is 24140034204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243004149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10510888 + ... + 10514715.

It is an arithmetic number, because the mean of its divisors is an integer number (2838456540).

Almost surely, 2^40243004142 is an apocalyptic number.

40243004142 is an abundant number, since it is smaller than the sum of its proper divisors (50587605138).

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

40243004142 is a wasteful number, since it uses less digits than its factorization.

40243004142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21025648.

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

Adding to 40243004142 its reverse (24140034204), we get a palindrome (64383038346).

The spelling of 40243004142 in words is "forty billion, two hundred forty-three million, four thousand, one hundred forty-two".