42742722440 has 64 divisors (see below), whose sum is σ = 105781144320. Its totient is φ = 15542788800.

The previous prime is 42742722403. The next prime is 42742722467. The reversal of 42742722440 is 4422724724.

It is a junction number, because it is equal to n+sod(n) for n = 42742722394 and 42742722403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348176 + ... + 454655.

It is an arithmetic number, because the mean of its divisors is an integer number (1652830380).

Almost surely, 2^42742722440 is an apocalyptic number.

42742722440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42742722440 is an abundant number, since it is smaller than the sum of its proper divisors (63038421880).

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

42742722440 is a wasteful number, since it uses less digits than its factorization.

42742722440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802875 (or 802849 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 38.

The spelling of 42742722440 in words is "forty-two billion, seven hundred forty-two million, seven hundred twenty-two thousand, four hundred forty".