74040045 has 16 divisors (see below), whose sum is σ = 122549760. Its totient is φ = 38126144.

The previous prime is 74040019. The next prime is 74040047. The reversal of 74040045 is 54004047.

It is a cyclic number.

It is not a de Polignac number, because 74040045 - 2⁹ = 74039533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74039997 and 74040024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74040047) 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, 84669 + ... + 85538.

It is an arithmetic number, because the mean of its divisors is an integer number (7659360).

Almost surely, 2^74040045 is an apocalyptic number.

It is an amenable number.

74040045 is a deficient number, since it is larger than the sum of its proper divisors (48509715).

74040045 is a wasteful number, since it uses less digits than its factorization.

74040045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170244.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 74040045 is about 8604.6525205844. The cubic root of 74040045 is about 419.9093625277.

The spelling of 74040045 in words is "seventy-four million, forty thousand, forty-five".