74399450 has 12 divisors (see below), whose sum is σ = 138383070. Its totient is φ = 29759760.

The previous prime is 74399447. The next prime is 74399453. The reversal of 74399450 is 5499347.

It is an interprime number because it is at equal distance from previous prime (74399447) and next prime (74399453).

It can be written as a sum of positive squares in 3 ways, for example, as 33860761 + 40538689 = 5819^2 + 6367^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74399398 and 74399407.

It is not an unprimeable number, because it can be changed into a prime (74399453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 743945 + ... + 744044.

Almost surely, 2^74399450 is an apocalyptic number.

74399450 is a deficient number, since it is larger than the sum of its proper divisors (63983620).

74399450 is a wasteful number, since it uses less digits than its factorization.

74399450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488001 (or 1487996 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 74399450 is about 8625.5115790311. The cubic root of 74399450 is about 420.5877070927.

The spelling of 74399450 in words is "seventy-four million, three hundred ninety-nine thousand, four hundred fifty".