74134800 has 90 divisors (see below), whose sum is σ = 257280842. Its totient is φ = 19768320.

The previous prime is 74134799. The next prime is 74134813. The reversal of 74134800 is 843147.

It can be written as a sum of positive squares in 3 ways, for example, as 20903184 + 53231616 = 4572^2 + 7296^2 .

It is a tau number, because it is divible by the number of its divisors (90).

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 17 ways as a sum of consecutive naturals, for example, 6697 + ... + 13896.

Almost surely, 2^74134800 is an apocalyptic number.

It is an amenable number.

74134800 is an abundant number, since it is smaller than the sum of its proper divisors (183146042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74134800 is a wasteful number, since it uses less digits than its factorization.

74134800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20617 (or 20603 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 74134800 is about 8610.1567929974. The cubic root of 74134800 is about 420.0884167597.

Adding to 74134800 its reverse (843147), we get a palindrome (74977947).

The spelling of 74134800 in words is "seventy-four million, one hundred thirty-four thousand, eight hundred".