74999250 has 128 divisors (see below), whose sum is σ = 213857280. Its totient is φ = 19440000.

The previous prime is 74999237. The next prime is 74999273. The reversal of 74999250 is 5299947.

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 = 74999196 and 74999205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 276615 + ... + 276885.

It is an arithmetic number, because the mean of its divisors is an integer number (1670760).

Almost surely, 2^74999250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74999250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106928640).

74999250 is an abundant number, since it is smaller than the sum of its proper divisors (138858030).

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

74999250 is a wasteful number, since it uses less digits than its factorization.

74999250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 74999250 is about 8660.2107364659. The cubic root of 74999250 is about 421.7149269251.

It can be divided in two parts, 749 and 99250, that added together give a palindrome (99999).

The spelling of 74999250 in words is "seventy-four million, nine hundred ninety-nine thousand, two hundred fifty".