74451450240 has 256 divisors, whose sum is σ = 267298833600. Its totient is φ = 19581419520.

The previous prime is 74451450221. The next prime is 74451450247. The reversal of 74451450240 is 4205415447.

74451450240 is a `hidden beast` number, since 74 + 4 + 514 + 50 + 24 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 74451450195 and 74451450204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74451450247) 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 31 ways as a sum of consecutive naturals, for example, 1231930 + ... + 1290950.

Almost surely, 2^74451450240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74451450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133649416800).

74451450240 is an abundant number, since it is smaller than the sum of its proper divisors (192847383360).

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

74451450240 is a wasteful number, since it uses less digits than its factorization.

74451450240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59122 (or 59104 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

Adding to 74451450240 its reverse (4205415447), we get a palindrome (78656865687).

The spelling of 74451450240 in words is "seventy-four billion, four hundred fifty-one million, four hundred fifty thousand, two hundred forty".