74445601 has 8 divisors (see below), whose sum is σ = 81368064. Its totient is φ = 67805760.

The previous prime is 74445593. The next prime is 74445647. The reversal of 74445601 is 10654447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74445601 - 2³ = 74445593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74445671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70105 + ... + 71158.

It is an arithmetic number, because the mean of its divisors is an integer number (10171008).

Almost surely, 2^74445601 is an apocalyptic number.

It is an amenable number.

74445601 is a deficient number, since it is larger than the sum of its proper divisors (6922463).

74445601 is a wasteful number, since it uses less digits than its factorization.

74445601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141311.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 74445601 is about 8628.1864258951. The cubic root of 74445601 is about 420.6746545595.

The spelling of 74445601 in words is "seventy-four million, four hundred forty-five thousand, six hundred one".