74249806 has 4 divisors (see below), whose sum is σ = 111374712. Its totient is φ = 37124902.

The previous prime is 74249803. The next prime is 74249807. The reversal of 74249806 is 60894247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60894247 = 727 ⋅83761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74249803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18562450 + ... + 18562453.

It is an arithmetic number, because the mean of its divisors is an integer number (27843678).

Almost surely, 2^74249806 is an apocalyptic number.

74249806 is a deficient number, since it is larger than the sum of its proper divisors (37124906).

74249806 is a wasteful number, since it uses less digits than its factorization.

74249806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37124905.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 74249806 is about 8616.8327127779. The cubic root of 74249806 is about 420.3055335403.

The spelling of 74249806 in words is "seventy-four million, two hundred forty-nine thousand, eight hundred six".