1045423632 has 160 divisors (see below), whose sum is σ = 3045519360. Its totient is φ = 306293760.

The previous prime is 1045423627. The next prime is 1045423651. The reversal of 1045423632 is 2363245401.

It is a self number, because there is not a number n which added to its sum of digits gives 1045423632.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2555844 + ... + 2556252.

It is an arithmetic number, because the mean of its divisors is an integer number (19034496).

Almost surely, 2^1045423632 is an apocalyptic number.

1045423632 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 1045423632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522759680).

1045423632 is an abundant number, since it is smaller than the sum of its proper divisors (2000095728).

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

1045423632 is a wasteful number, since it uses less digits than its factorization.

1045423632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1045423632 is about 32333.0114898071. The cubic root of 1045423632 is about 1014.9175702106.

The spelling of 1045423632 in words is "one billion, forty-five million, four hundred twenty-three thousand, six hundred thirty-two".