74253331 has 4 divisors (see below), whose sum is σ = 78621192. Its totient is φ = 69885472.

The previous prime is 74253313. The next prime is 74253343. The reversal of 74253331 is 13335247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74253331 - 2⁵ = 74253299 is a prime.

It is a super-2 number, since 2×74253331² = 11027114329191122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74253331.

It is not an unprimeable number, because it can be changed into a prime (74253391) 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, 2183905 + ... + 2183938.

It is an arithmetic number, because the mean of its divisors is an integer number (19655298).

Almost surely, 2^74253331 is an apocalyptic number.

74253331 is a deficient number, since it is larger than the sum of its proper divisors (4367861).

74253331 is a wasteful number, since it uses less digits than its factorization.

74253331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4367860.

The product of its digits is 7560, while the sum is 28.

The square root of 74253331 is about 8617.0372518633. The cubic root of 74253331 is about 420.3121847521.

Adding to 74253331 its reverse (13335247), we get a palindrome (87588578).

The spelling of 74253331 in words is "seventy-four million, two hundred fifty-three thousand, three hundred thirty-one".