74006740040 has 64 divisors (see below), whose sum is σ = 171623612160. Its totient is φ = 28703393280.

The previous prime is 74006739977. The next prime is 74006740043. The reversal of 74006740040 is 4004760047.

It is a junction number, because it is equal to n+sod(n) for n = 74006739979 and 74006740006.

It is not an unprimeable number, because it can be changed into a prime (74006740043) 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, 128897 + ... + 405743.

It is an arithmetic number, because the mean of its divisors is an integer number (2681618940).

Almost surely, 2^74006740040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74006740040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85811806080).

74006740040 is an abundant number, since it is smaller than the sum of its proper divisors (97616872120).

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

74006740040 is a wasteful number, since it uses less digits than its factorization.

74006740040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277062 (or 277058 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The spelling of 74006740040 in words is "seventy-four billion, six million, seven hundred forty thousand, forty".