74242078 has 8 divisors (see below), whose sum is σ = 111453768. Its totient is φ = 37090824.

The previous prime is 74242061. The next prime is 74242121. The reversal of 74242078 is 87024247.

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

It is a super-2 number, since 2×74242078² = 11023772291516168, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 11901 + ... + 17032.

It is an arithmetic number, because the mean of its divisors is an integer number (13931721).

Almost surely, 2^74242078 is an apocalyptic number.

74242078 is a deficient number, since it is larger than the sum of its proper divisors (37211690).

74242078 is a wasteful number, since it uses less digits than its factorization.

74242078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30218.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 74242078 is about 8616.3842764816. The cubic root of 74242078 is about 420.2909510831.

The spelling of 74242078 in words is "seventy-four million, two hundred forty-two thousand, seventy-eight".