42757530040 has 64 divisors (see below), whose sum is σ = 99301752000. Its totient is φ = 16557032448.

The previous prime is 42757530037. The next prime is 42757530047. The reversal of 42757530040 is 4003575724.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42757530047) 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, 221932 + ... + 367108.

It is an arithmetic number, because the mean of its divisors is an integer number (1551589875).

Almost surely, 2^42757530040 is an apocalyptic number.

42757530040 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 42757530040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49650876000).

42757530040 is an abundant number, since it is smaller than the sum of its proper divisors (56544221960).

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

42757530040 is a wasteful number, since it uses less digits than its factorization.

42757530040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145424 (or 145420 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 37.

The spelling of 42757530040 in words is "forty-two billion, seven hundred fifty-seven million, five hundred thirty thousand, forty".