74123378 has 24 divisors (see below), whose sum is σ = 129861504. Its totient is φ = 31638600.

The previous prime is 74123359. The next prime is 74123381. The reversal of 74123378 is 87332147.

It is a super-2 number, since 2×74123378² = 10988550332261768, 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25163 + ... + 27953.

It is an arithmetic number, because the mean of its divisors is an integer number (5410896).

Almost surely, 2^74123378 is an apocalyptic number.

74123378 is a deficient number, since it is larger than the sum of its proper divisors (55738126).

74123378 is a wasteful number, since it uses less digits than its factorization.

74123378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078 (or 3071 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 74123378 is about 8609.4934810359. The cubic root of 74123378 is about 420.0668412138.

The spelling of 74123378 in words is "seventy-four million, one hundred twenty-three thousand, three hundred seventy-eight".