999465824 has 24 divisors (see below), whose sum is σ = 2248798608. Its totient is φ = 428342400.

The previous prime is 999465821. The next prime is 999465833. The reversal of 999465824 is 428564999.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 999465824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999465821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2230727 + ... + 2231174.

It is an arithmetic number, because the mean of its divisors is an integer number (93699942).

Almost surely, 2^999465824 is an apocalyptic number.

It is an amenable number.

999465824 is an abundant number, since it is smaller than the sum of its proper divisors (1249332784).

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

999465824 is a wasteful number, since it uses less digits than its factorization.

999465824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461918 (or 4461910 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 56.

The square root of 999465824 is about 31614.3294093043. The cubic root of 999465824 is about 999.8219096190.

The spelling of 999465824 in words is "nine hundred ninety-nine million, four hundred sixty-five thousand, eight hundred twenty-four".