74074378 has 12 divisors (see below), whose sum is σ = 129252402. Its totient is φ = 31746120.

The previous prime is 74074349. The next prime is 74074379. The reversal of 74074378 is 87347047.

It can be written as a sum of positive squares in only one way, i.e., 66961489 + 7112889 = 8183^2 + 2667^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74074378.

It is not an unprimeable number, because it can be changed into a prime (74074379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 377833 + ... + 378028.

Almost surely, 2^74074378 is an apocalyptic number.

74074378 is a deficient number, since it is larger than the sum of its proper divisors (55178024).

74074378 is a wasteful number, since it uses less digits than its factorization.

74074378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755877 (or 755870 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 74074378 is about 8606.6473147213. The cubic root of 74074378 is about 419.9742576815.

It can be divided in two parts, 74074 and 378, that multiplied together give a palindrome (27999972).

The spelling of 74074378 in words is "seventy-four million, seventy-four thousand, three hundred seventy-eight".