499981230 has 48 divisors (see below), whose sum is σ = 1485660384. Its totient is φ = 114281280.

The previous prime is 499981217. The next prime is 499981243. The reversal of 499981230 is 32189994.

It is an interprime number because it is at equal distance from previous prime (499981217) and next prime (499981243).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396181 + ... + 397440.

It is an arithmetic number, because the mean of its divisors is an integer number (30951258).

Almost surely, 2^499981230 is an apocalyptic number.

499981230 is an abundant number, since it is smaller than the sum of its proper divisors (985679154).

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

499981230 is a wasteful number, since it uses less digits than its factorization.

499981230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793641 (or 793638 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 499981230 is about 22360.2600610995. The cubic root of 499981230 is about 793.6905940206.

The spelling of 499981230 in words is "four hundred ninety-nine million, nine hundred eighty-one thousand, two hundred thirty".