74002809 has 16 divisors (see below), whose sum is σ = 102309120. Its totient is φ = 47523840.

The previous prime is 74002781. The next prime is 74002811. The reversal of 74002809 is 90820047.

It is not a de Polignac number, because 74002809 - 2¹¹ = 74000761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74002009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55104 + ... + 56430.

It is an arithmetic number, because the mean of its divisors is an integer number (6394320).

Almost surely, 2^74002809 is an apocalyptic number.

It is an amenable number.

74002809 is a deficient number, since it is larger than the sum of its proper divisors (28306311).

74002809 is a wasteful number, since it uses less digits than its factorization.

74002809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 74002809 is about 8602.4885353019. The cubic root of 74002809 is about 419.8389575330.

The spelling of 74002809 in words is "seventy-four million, two thousand, eight hundred nine".