74071491 has 16 divisors (see below), whose sum is σ = 108165120. Its totient is φ = 44808480.

The previous prime is 74071489. The next prime is 74071541. The reversal of 74071491 is 19417047.

It is not a de Polignac number, because 74071491 - 2¹ = 74071489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74071471) 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, 13795 + ... + 18396.

It is an arithmetic number, because the mean of its divisors is an integer number (6760320).

Almost surely, 2^74071491 is an apocalyptic number.

74071491 is a deficient number, since it is larger than the sum of its proper divisors (34093629).

74071491 is a wasteful number, since it uses less digits than its factorization.

74071491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32266.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 74071491 is about 8606.4795938874. The cubic root of 74071491 is about 419.9688015374.

The spelling of 74071491 in words is "seventy-four million, seventy-one thousand, four hundred ninety-one".