74243351 has 16 divisors (see below), whose sum is σ = 92671488. Its totient is φ = 57909600.

The previous prime is 74243347. The next prime is 74243381. The reversal of 74243351 is 15334247.

It is a happy number.

It is not a de Polignac number, because 74243351 - 2² = 74243347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74243381) 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, 716 + ... + 12206.

It is an arithmetic number, because the mean of its divisors is an integer number (5791968).

Almost surely, 2^74243351 is an apocalyptic number.

74243351 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

74243351 is a deficient number, since it is larger than the sum of its proper divisors (18428137).

74243351 is a wasteful number, since it uses less digits than its factorization.

74243351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11582.

The product of its digits is 10080, while the sum is 29.

The square root of 74243351 is about 8616.4581470579. The cubic root of 74243351 is about 420.2933532578.

Adding to 74243351 its reverse (15334247), we get a palindrome (89577598).

The spelling of 74243351 in words is "seventy-four million, two hundred forty-three thousand, three hundred fifty-one".