74445019 has 16 divisors (see below), whose sum is σ = 83397600. Its totient is φ = 65877760.

The previous prime is 74445017. The next prime is 74445031. The reversal of 74445019 is 91054447.

It is a cyclic number.

It is not a de Polignac number, because 74445019 - 2¹ = 74445017 is a prime.

It is a super-2 number, since 2×74445019² = 11084121707820722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74445011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86439 + ... + 87295.

It is an arithmetic number, because the mean of its divisors is an integer number (5212350).

Almost surely, 2^74445019 is an apocalyptic number.

74445019 is a deficient number, since it is larger than the sum of its proper divisors (8952581).

74445019 is a wasteful number, since it uses less digits than its factorization.

74445019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 74445019 is about 8628.1526991587. The cubic root of 74445019 is about 420.6735583080.

The spelling of 74445019 in words is "seventy-four million, four hundred forty-five thousand, nineteen".