42594684440 has 128 divisors (see below), whose sum is σ = 120829708800. Its totient is φ = 13127009280.

The previous prime is 42594684401. The next prime is 42594684487. The reversal of 42594684440 is 4448649524.

It is a super-2 number, since 2×42594684440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 196427 + ... + 351813.

It is an arithmetic number, because the mean of its divisors is an integer number (943982100).

Almost surely, 2^42594684440 is an apocalyptic number.

42594684440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42594684440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60414854400).

42594684440 is an abundant number, since it is smaller than the sum of its proper divisors (78235024360).

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

42594684440 is a wasteful number, since it uses less digits than its factorization.

42594684440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155505 (or 155501 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 50.

The spelling of 42594684440 in words is "forty-two billion, five hundred ninety-four million, six hundred eighty-four thousand, four hundred forty".