74189240 has 16 divisors (see below), whose sum is σ = 166925880. Its totient is φ = 29675680.

The previous prime is 74189183. The next prime is 74189257. The reversal of 74189240 is 4298147.

It is a self number, because there is not a number n which added to its sum of digits gives 74189240.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 927326 + ... + 927405.

Almost surely, 2^74189240 is an apocalyptic number.

It is an amenable number.

74189240 is an abundant number, since it is smaller than the sum of its proper divisors (92736640).

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

74189240 is a wasteful number, since it uses less digits than its factorization.

74189240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854742 (or 1854738 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 74189240 is about 8613.3175954449. The cubic root of 74189240 is about 420.1912205607.

The spelling of 74189240 in words is "seventy-four million, one hundred eighty-nine thousand, two hundred forty".