42507550440 has 64 divisors (see below), whose sum is σ = 141691838400. Its totient is φ = 11335346496.

The previous prime is 42507550427. The next prime is 42507550493. The reversal of 42507550440 is 4405570524.

It is a happy number.

42507550440 is a `hidden beast` number, since 42 + 5 + 0 + 75 + 504 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42507550395 and 42507550404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19678342 + ... + 19680501.

It is an arithmetic number, because the mean of its divisors is an integer number (2213934975).

Almost surely, 2^42507550440 is an apocalyptic number.

42507550440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42507550440 is an abundant number, since it is smaller than the sum of its proper divisors (99184287960).

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

42507550440 is a wasteful number, since it uses less digits than its factorization.

42507550440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39358863 (or 39358853 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The spelling of 42507550440 in words is "forty-two billion, five hundred seven million, five hundred fifty thousand, four hundred forty".