74909441 has 4 divisors (see below), whose sum is σ = 74928084. Its totient is φ = 74890800.

The previous prime is 74909411. The next prime is 74909449. The reversal of 74909441 is 14490947.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44890000 + 30019441 = 6700^2 + 5479^2 .

It is a cyclic number.

It is not a de Polignac number, because 74909441 - 2¹⁰ = 74908417 is a prime.

It is a super-2 number, since 2×74909441² = 11222848701864962, 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 = 74909395 and 74909404.

It is not an unprimeable number, because it can be changed into a prime (74909449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530 + ... + 12251.

It is an arithmetic number, because the mean of its divisors is an integer number (18732021).

Almost surely, 2^74909441 is an apocalyptic number.

It is an amenable number.

74909441 is a deficient number, since it is larger than the sum of its proper divisors (18643).

74909441 is a wasteful number, since it uses less digits than its factorization.

74909441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18642.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 74909441 is about 8655.0240323179. The cubic root of 74909441 is about 421.5465300258.

The spelling of 74909441 in words is "seventy-four million, nine hundred nine thousand, four hundred forty-one".