1004551312 has 40 divisors (see below), whose sum is σ = 2043994176. Its totient is φ = 477350016.

The previous prime is 1004551309. The next prime is 1004551313. The reversal of 1004551312 is 2131554001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1004551313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49083 + ... + 66469.

Almost surely, 2^1004551312 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 1004551312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021997088).

1004551312 is an abundant number, since it is smaller than the sum of its proper divisors (1039442864).

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

1004551312 is a wasteful number, since it uses less digits than its factorization.

1004551312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17575 (or 17569 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1004551312 is about 31694.6574677815. The cubic root of 1004551312 is about 1001.5148081975.

The spelling of 1004551312 in words is "one billion, four million, five hundred fifty-one thousand, three hundred twelve".