74012840 has 32 divisors (see below), whose sum is σ = 181668960. Its totient is φ = 26913600.

The previous prime is 74012821. The next prime is 74012867. The reversal of 74012840 is 4821047.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 83666 + ... + 84545.

It is an arithmetic number, because the mean of its divisors is an integer number (5677155).

Almost surely, 2^74012840 is an apocalyptic number.

It is an amenable number.

74012840 is an abundant number, since it is smaller than the sum of its proper divisors (107656120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74012840 is a wasteful number, since it uses less digits than its factorization.

74012840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168233 (or 168229 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 74012840 is about 8603.0715445125. The cubic root of 74012840 is about 419.8579262468.

Adding to 74012840 its reverse (4821047), we get a palindrome (78833887).

The spelling of 74012840 in words is "seventy-four million, twelve thousand, eight hundred forty".