74538406 has 8 divisors (see below), whose sum is σ = 117692280. Its totient is φ = 35307648.

The previous prime is 74538391. The next prime is 74538437. The reversal of 74538406 is 60483547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980731 + ... + 980806.

It is an arithmetic number, because the mean of its divisors is an integer number (14711535).

Almost surely, 2^74538406 is an apocalyptic number.

74538406 is a deficient number, since it is larger than the sum of its proper divisors (43153874).

74538406 is a wasteful number, since it uses less digits than its factorization.

74538406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961558.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 74538406 is about 8633.5627640042. The cubic root of 74538406 is about 420.8493884103.

The spelling of 74538406 in words is "seventy-four million, five hundred thirty-eight thousand, four hundred six".