499999442250 has 192 divisors, whose sum is σ = 1583732352384. Its totient is φ = 103895904000.

The previous prime is 499999442231. The next prime is 499999442279. The reversal of 499999442250 is 52244999994.

It is a super-2 number, since 2×499999442250² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 214179 + ... + 1022678.

It is an arithmetic number, because the mean of its divisors is an integer number (8248606002).

Almost surely, 2^499999442250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499999442250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791866176192).

499999442250 is an abundant number, since it is smaller than the sum of its proper divisors (1083732910134).

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

499999442250 is a wasteful number, since it uses less digits than its factorization.

499999442250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236902 (or 1236885 counting only the distinct ones).

The product of its (nonzero) digits is 75582720, while the sum is 66.

It can be divided in two parts, 499999 and 442250, that added together give a palindrome (942249).

The spelling of 499999442250 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, four hundred forty-two thousand, two hundred fifty".