74024431 has 4 divisors (see below), whose sum is σ = 79718632. Its totient is φ = 68330232.

The previous prime is 74024429. The next prime is 74024441. The reversal of 74024431 is 13442047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13442047 = 47 ⋅286001.

It is a cyclic number.

It is not a de Polignac number, because 74024431 - 2¹ = 74024429 is a prime.

It is a super-2 number, since 2×74024431² = 10959232769747522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74024396 and 74024405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74024441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2847081 + ... + 2847106.

It is an arithmetic number, because the mean of its divisors is an integer number (19929658).

Almost surely, 2^74024431 is an apocalyptic number.

74024431 is a deficient number, since it is larger than the sum of its proper divisors (5694201).

74024431 is a wasteful number, since it uses less digits than its factorization.

74024431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694200.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 74024431 is about 8603.7451728884. The cubic root of 74024431 is about 419.8798428008.

Adding to 74024431 its reverse (13442047), we get a palindrome (87466478).

The spelling of 74024431 in words is "seventy-four million, twenty-four thousand, four hundred thirty-one".