74336867440 has 40 divisors (see below), whose sum is σ = 188545329648. Its totient is φ = 27031587840.

The previous prime is 74336867417. The next prime is 74336867441. The reversal of 74336867440 is 4476863347.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74336867441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42235977 + ... + 42237736.

Almost surely, 2^74336867440 is an apocalyptic number.

It is an amenable number.

74336867440 is an abundant number, since it is smaller than the sum of its proper divisors (114208462208).

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

74336867440 is a wasteful number, since it uses less digits than its factorization.

74336867440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84473737 (or 84473731 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 52.

The spelling of 74336867440 in words is "seventy-four billion, three hundred thirty-six million, eight hundred sixty-seven thousand, four hundred forty".