999474 has 32 divisors (see below), whose sum is σ = 2332800. Its totient is φ = 279552.

The previous prime is 999451. The next prime is 999491. The reversal of 999474 is 474999.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon 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, 2002 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (72900).

2⁹⁹⁹⁴⁷⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166400).

999474 is an abundant number, since it is smaller than the sum of its proper divisors (1333326).

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

999474 is a wasteful number, since it uses less digits than its factorization.

999474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its digits is 81648, while the sum is 42.

The square root of 999474 is about 999.7369654064. The cubic root of 999474 is about 99.9824635916.

The spelling of 999474 in words is "nine hundred ninety-nine thousand, four hundred seventy-four".