74006447290 has 12 divisors (see below), whose sum is σ = 133213153626. Its totient is φ = 29602234808.

The previous prime is 74006447257. The next prime is 74006447297. The reversal of 74006447290 is 9274460047.

It can be written as a sum of positive squares in only one way, i.e., 66605802561 + 7400644729 = 258081^2 + 86027^2 .

It is not an unprimeable number, because it can be changed into a prime (74006447297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 817257 + ... + 903283.

Almost surely, 2^74006447290 is an apocalyptic number.

74006447290 is a deficient number, since it is larger than the sum of its proper divisors (59206706336).

74006447290 is an frugal number, since it uses more digits than its factorization.

74006447290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172061 (or 86034 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 74006447290 in words is "seventy-four billion, six million, four hundred forty-seven thousand, two hundred ninety".