499443750 has 144 divisors (see below), whose sum is σ = 1458750384. Its totient is φ = 122760000.

The previous prime is 499443743. The next prime is 499443757. The reversal of 499443750 is 57344994.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (499443743) and next prime (499443757).

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 = 499443696 and 499443705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499443757) 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, 730909 + ... + 731591.

It is an arithmetic number, because the mean of its divisors is an integer number (10130211).

Almost surely, 2^499443750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499443750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729375192).

499443750 is an abundant number, since it is smaller than the sum of its proper divisors (959306634).

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

499443750 is a wasteful number, since it uses less digits than its factorization.

499443750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 499443750 is about 22348.2381855931. The cubic root of 499443750 is about 793.4060861573.

The spelling of 499443750 in words is "four hundred ninety-nine million, four hundred forty-three thousand, seven hundred fifty".