74146140 has 36 divisors (see below), whose sum is σ = 224910504. Its totient is φ = 19772256.

The previous prime is 74146139. The next prime is 74146159. The reversal of 74146140 is 4164147.

74146140 is a `hidden beast` number, since 7 + 41 + 4 + 614 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 205782 + ... + 206141.

It is an arithmetic number, because the mean of its divisors is an integer number (6247514).

Almost surely, 2^74146140 is an apocalyptic number.

It is an amenable number.

74146140 is an abundant number, since it is smaller than the sum of its proper divisors (150764364).

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

74146140 is a wasteful number, since it uses less digits than its factorization.

74146140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411938 (or 411933 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 74146140 is about 8610.8152924099. The cubic root of 74146140 is about 420.1098352198.

The spelling of 74146140 in words is "seventy-four million, one hundred forty-six thousand, one hundred forty".