499412540 has 48 divisors (see below), whose sum is σ = 1154291040. Its totient is φ = 179988480.

The previous prime is 499412527. The next prime is 499412561. The reversal of 499412540 is 45214994.

It is a junction number, because it is equal to n+sod(n) for n = 499412494 and 499412503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14816 + ... + 34904.

It is an arithmetic number, because the mean of its divisors is an integer number (24047730).

Almost surely, 2^499412540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499412540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577145520).

499412540 is an abundant number, since it is smaller than the sum of its proper divisors (654878500).

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

499412540 is a wasteful number, since it uses less digits than its factorization.

499412540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222 (or 20220 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 499412540 is about 22347.5399093502. The cubic root of 499412540 is about 793.3895592913.

The spelling of 499412540 in words is "four hundred ninety-nine million, four hundred twelve thousand, five hundred forty".