999413622 has 48 divisors (see below), whose sum is σ = 2223001872. Its totient is φ = 324311040.

The previous prime is 999413599. The next prime is 999413627. The reversal of 999413622 is 226314999.

It is a happy number.

999413622 is a `hidden beast` number, since 9 + 9 + 9 + 4 + 13 + 622 = 666.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (999413627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424653 + ... + 426999.

It is an arithmetic number, because the mean of its divisors is an integer number (46312539).

Almost surely, 2^999413622 is an apocalyptic number.

999413622 is an abundant number, since it is smaller than the sum of its proper divisors (1223588250).

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

999413622 is a wasteful number, since it uses less digits than its factorization.

999413622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973 (or 2970 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 999413622 is about 31613.5037918925. The cubic root of 999413622 is about 999.8045024499.

The spelling of 999413622 in words is "nine hundred ninety-nine million, four hundred thirteen thousand, six hundred twenty-two".