42002154140 has 24 divisors (see below), whose sum is σ = 88257442560. Its totient is φ = 16790781888.

The previous prime is 42002154119. The next prime is 42002154143. The reversal of 42002154140 is 4145120024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002154143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595772 + ... + 662531.

It is an arithmetic number, because the mean of its divisors is an integer number (3677393440).

Almost surely, 2^42002154140 is an apocalyptic number.

It is an amenable number.

42002154140 is an abundant number, since it is smaller than the sum of its proper divisors (46255288420).

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

42002154140 is a wasteful number, since it uses less digits than its factorization.

42002154140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259981 (or 1259979 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 42002154140 its reverse (4145120024), we get a palindrome (46147274164).

The spelling of 42002154140 in words is "forty-two billion, two million, one hundred fifty-four thousand, one hundred forty".