73400256 has 70 divisors (see below), whose sum is σ = 217596720. Its totient is φ = 24465024.

The previous prime is 73400251. The next prime is 73400279. The reversal of 73400256 is 65200437.

It is a happy number.

73400256 is a `hidden beast` number, since 7 + 3 + 400 + 256 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73400251) 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 9 ways as a sum of consecutive naturals, for example, 1896 + ... + 12263.

Almost surely, 2^73400256 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 73400256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108798360).

73400256 is an abundant number, since it is smaller than the sum of its proper divisors (144196464).

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

73400256 is a wasteful number, since it uses less digits than its factorization.

73400256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183 (or 14164 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 73400256 is about 8567.3949366187. The cubic root of 73400256 is about 418.6963660126.

The spelling of 73400256 in words is "seventy-three million, four hundred thousand, two hundred fifty-six".