74068240 has 40 divisors (see below), whose sum is σ = 175881600. Its totient is φ = 28995456.

The previous prime is 74068199. The next prime is 74068273. The reversal of 74068240 is 4286047.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×74068240² = 10972208353395200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6090 + ... + 13609.

It is an arithmetic number, because the mean of its divisors is an integer number (4397040).

Almost surely, 2^74068240 is an apocalyptic number.

It is an amenable number.

74068240 is an abundant number, since it is smaller than the sum of its proper divisors (101813360).

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

74068240 is a wasteful number, since it uses less digits than its factorization.

74068240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19759 (or 19753 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 74068240 is about 8606.2907224890. The cubic root of 74068240 is about 419.9626572997.

The spelling of 74068240 in words is "seventy-four million, sixty-eight thousand, two hundred forty".