42000420454540 has 48 divisors (see below), whose sum is σ = 88273451895552. Its totient is φ = 16786347028416.

The previous prime is 42000420454511. The next prime is 42000420454543. The reversal of 42000420454540 is 4545402400024.

It is a super-2 number, since 2×42000420454540² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42000420454496 and 42000420454505.

It is not an unprimeable number, because it can be changed into a prime (42000420454543) 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, 604923307 + ... + 604992733.

It is an arithmetic number, because the mean of its divisors is an integer number (1839030247824).

Almost surely, 2^{42000420454540} is an apocalyptic number.

It is an amenable number.

42000420454540 is an abundant number, since it is smaller than the sum of its proper divisors (46273031441012).

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

42000420454540 is a wasteful number, since it uses less digits than its factorization.

42000420454540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93886 (or 93884 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 34.

Adding to 42000420454540 its reverse (4545402400024), we get a palindrome (46545822854564).

The spelling of 42000420454540 in words is "forty-two trillion, four hundred twenty million, four hundred fifty-four thousand, five hundred forty".