74521834 has 4 divisors (see below), whose sum is σ = 111782754. Its totient is φ = 37260916.

The previous prime is 74521823. The next prime is 74521859. The reversal of 74521834 is 43812547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43812547 = 4507 ⋅9721.

It can be written as a sum of positive squares in only one way, i.e., 61669609 + 12852225 = 7853^2 + 3585^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 74521834.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18630457 + ... + 18630460.

Almost surely, 2^74521834 is an apocalyptic number.

74521834 is a deficient number, since it is larger than the sum of its proper divisors (37260920).

74521834 is a wasteful number, since it uses less digits than its factorization.

74521834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37260919.

The product of its digits is 26880, while the sum is 34.

The square root of 74521834 is about 8632.6029678192. The cubic root of 74521834 is about 420.8181971835.

The spelling of 74521834 in words is "seventy-four million, five hundred twenty-one thousand, eight hundred thirty-four".