42002462040040 has 32 divisors (see below), whose sum is σ = 94505921289000. Its totient is φ = 16800916958464.

The previous prime is 42002462039983. The next prime is 42002462040061. The reversal of 42002462040040 is 4004026420024.

It can be written as a sum of positive squares in 4 ways, for example, as 34109407786276 + 7893054253764 = 5840326^2 + 2809458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42002462039990 and 42002462040008.

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, 8572626 + ... + 12549694.

Almost surely, 2^{42002462040040} is an apocalyptic number.

42002462040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42002462040040 is an abundant number, since it is smaller than the sum of its proper divisors (52503459248960).

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

42002462040040 is a wasteful number, since it uses less digits than its factorization.

42002462040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241109 (or 4241105 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 42002462040040 its reverse (4004026420024), we get a palindrome (46006488460064).

The spelling of 42002462040040 in words is "forty-two trillion, two billion, four hundred sixty-two million, forty thousand, forty".