42744295440 has 2160 divisors, whose sum is σ = 211171484160. Its totient is φ = 7664025600.

The previous prime is 42744295439. The next prime is 42744295441. The reversal of 42744295440 is 4459244724.

42744295440 is a `hidden beast` number, since 42 + 7 + 44 + 29 + 544 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (42744295439) and next prime (42744295441).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (42744295441) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 1378848225 + ... + 1378848255.

It is an arithmetic number, because the mean of its divisors is an integer number (97764576).

Almost surely, 2^42744295440 is an apocalyptic number.

42744295440 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 42744295440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105585742080).

42744295440 is an abundant number, since it is smaller than the sum of its proper divisors (168427188720).

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

42744295440 is a wasteful number, since it uses less digits than its factorization.

42744295440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 42744295440 in words is "forty-two billion, seven hundred forty-four million, two hundred ninety-five thousand, four hundred forty".