74840534 has 8 divisors (see below), whose sum is σ = 114101328. Its totient is φ = 36806760.

The previous prime is 74840509. The next prime is 74840537. The reversal of 74840534 is 43504847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74840534² = 11202211058810312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74840494 and 74840503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74840537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306602 + ... + 306845.

It is an arithmetic number, because the mean of its divisors is an integer number (14262666).

Almost surely, 2^74840534 is an apocalyptic number.

74840534 is a deficient number, since it is larger than the sum of its proper divisors (39260794).

74840534 is a wasteful number, since it uses less digits than its factorization.

74840534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613510.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 74840534 is about 8651.0423649408. The cubic root of 74840534 is about 421.4172342718.

The spelling of 74840534 in words is "seventy-four million, eight hundred forty thousand, five hundred thirty-four".