74228741 has 4 divisors (see below), whose sum is σ = 74278092. Its totient is φ = 74179392.

The previous prime is 74228729. The next prime is 74228743. The reversal of 74228741 is 14782247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14782247 = 19 ⋅778013.

It can be written as a sum of positive squares in 2 ways, for example, as 19838116 + 54390625 = 4454^2 + 7375^2 .

It is a cyclic number.

It is not a de Polignac number, because 74228741 - 2⁶ = 74228677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74228743) 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, 22346 + ... + 25451.

It is an arithmetic number, because the mean of its divisors is an integer number (18569523).

Almost surely, 2^74228741 is an apocalyptic number.

It is an amenable number.

74228741 is a deficient number, since it is larger than the sum of its proper divisors (49351).

74228741 is a wasteful number, since it uses less digits than its factorization.

74228741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49350.

The product of its digits is 25088, while the sum is 35.

The square root of 74228741 is about 8615.6103092004. The cubic root of 74228741 is about 420.2657822648.

The spelling of 74228741 in words is "seventy-four million, two hundred twenty-eight thousand, seven hundred forty-one".