76457250 has 128 divisors (see below), whose sum is σ = 217451520. Its totient is φ = 19872000.

The previous prime is 76457239. The next prime is 76457257. The reversal of 76457250 is 5275467.

76457250 is a `hidden beast` number, since 7 + 645 + 7 + 2 + 5 + 0 = 666.

It is a super-2 number, since 2×76457250² = 11691422155125000, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76457257) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 317130 + ... + 317370.

It is an arithmetic number, because the mean of its divisors is an integer number (1698840).

Almost surely, 2^76457250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76457250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108725760).

76457250 is an abundant number, since it is smaller than the sum of its proper divisors (140994270).

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

76457250 is a wasteful number, since it uses less digits than its factorization.

76457250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 76457250 is about 8743.9836459133. The cubic root of 76457250 is about 424.4301474544.

The spelling of 76457250 in words is "seventy-six million, four hundred fifty-seven thousand, two hundred fifty".