499836240 has 120 divisors (see below), whose sum is σ = 1689311520. Its totient is φ = 132440832.

The previous prime is 499836221. The next prime is 499836263. The reversal of 499836240 is 42638994.

It is a tau number, because it is divible by the number of its divisors (120).

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

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, 115231 + ... + 119489.

It is an arithmetic number, because the mean of its divisors is an integer number (14077596).

Almost surely, 2^499836240 is an apocalyptic number.

499836240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499836240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844655760).

499836240 is an abundant number, since it is smaller than the sum of its proper divisors (1189475280).

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

499836240 is a wasteful number, since it uses less digits than its factorization.

499836240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441 (or 4432 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 499836240 is about 22357.0176902019. The cubic root of 499836240 is about 793.6138655903.

The spelling of 499836240 in words is "four hundred ninety-nine million, eight hundred thirty-six thousand, two hundred forty".