74369439 has 12 divisors (see below), whose sum is σ = 113076600. Its totient is φ = 46970064.

The previous prime is 74369437. The next prime is 74369453. The reversal of 74369439 is 93496347.

It is not a de Polignac number, because 74369439 - 2¹ = 74369437 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 74369394 and 74369403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74369437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217284 + ... + 217625.

It is an arithmetic number, because the mean of its divisors is an integer number (9423050).

Almost surely, 2^74369439 is an apocalyptic number.

74369439 is a deficient number, since it is larger than the sum of its proper divisors (38707161).

74369439 is a wasteful number, since it uses less digits than its factorization.

74369439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434934 (or 434931 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 74369439 is about 8623.7717386304. The cubic root of 74369439 is about 420.5311477354.

The spelling of 74369439 in words is "seventy-four million, three hundred sixty-nine thousand, four hundred thirty-nine".