1045673712 has 120 divisors (see below), whose sum is σ = 3085271280. Its totient is φ = 342766080.

The previous prime is 1045673711. The next prime is 1045673749. The reversal of 1045673712 is 2173765401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045673711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234964 + ... + 239372.

It is an arithmetic number, because the mean of its divisors is an integer number (25710594).

Almost surely, 2^1045673712 is an apocalyptic number.

1045673712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045673712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542635640).

1045673712 is an abundant number, since it is smaller than the sum of its proper divisors (2039597568).

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

1045673712 is an equidigital number, since it uses as much as digits as its factorization.

1045673712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 1045673712 is about 32336.8785135486. The cubic root of 1045673712 is about 1014.9984912658.

The spelling of 1045673712 in words is "one billion, forty-five million, six hundred seventy-three thousand, seven hundred twelve".