40421023142 has 16 divisors (see below), whose sum is σ = 63212173200. Its totient is φ = 19368035232.

The previous prime is 40421023127. The next prime is 40421023169. The reversal of 40421023142 is 24132012404.

It is a super-2 number, since 2×40421023142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4429517 + ... + 4438632.

It is an arithmetic number, because the mean of its divisors is an integer number (3950760825).

Almost surely, 2^40421023142 is an apocalyptic number.

40421023142 is a deficient number, since it is larger than the sum of its proper divisors (22791150058).

40421023142 is a wasteful number, since it uses less digits than its factorization.

40421023142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8868247.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40421023142 its reverse (24132012404), we get a palindrome (64553035546).

The spelling of 40421023142 in words is "forty billion, four hundred twenty-one million, twenty-three thousand, one hundred forty-two".