74388743 has 36 divisors (see below), whose sum is σ = 93643704. Its totient is φ = 58687200.

The previous prime is 74388737. The next prime is 74388751. The reversal of 74388743 is 34788347.

It is not a de Polignac number, because 74388743 - 2¹² = 74384647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74388694 and 74388703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74388773) 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 35 ways as a sum of consecutive naturals, for example, 567788 + ... + 567918.

It is an arithmetic number, because the mean of its divisors is an integer number (2601214).

Almost surely, 2^74388743 is an apocalyptic number.

74388743 is a deficient number, since it is larger than the sum of its proper divisors (19254961).

74388743 is a wasteful number, since it uses less digits than its factorization.

74388743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 174 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 74388743 is about 8624.8908978607. The cubic root of 74388743 is about 420.5675302024.

The spelling of 74388743 in words is "seventy-four million, three hundred eighty-eight thousand, seven hundred forty-three".