749594250 has 144 divisors (see below), whose sum is σ = 2109359304. Its totient is φ = 199454400.

The previous prime is 749594249. The next prime is 749594257. The reversal of 749594250 is 52495947.

749594250 is a `hidden beast` number, since 7 + 4 + 9 + 594 + 2 + 50 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 368524809 + 381069441 = 19197^2 + 19521^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 749594196 and 749594205.

It is not an unprimeable number, because it can be changed into a prime (749594257) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1640022 + ... + 1640478.

Almost surely, 2^749594250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749594250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1054679652).

749594250 is an abundant number, since it is smaller than the sum of its proper divisors (1359765054).

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

749594250 is an frugal number, since it uses more digits than its factorization.

749594250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 749594250 is about 27378.7189254720. The cubic root of 749594250 is about 908.3964231539.

The spelling of 749594250 in words is "seven hundred forty-nine million, five hundred ninety-four thousand, two hundred fifty".