1045463020 has 72 divisors (see below), whose sum is σ = 2584887984. Its totient is φ = 354098304.

The previous prime is 1045462981. The next prime is 1045463039. The reversal of 1045463020 is 203645401.

It is an unprimeable number.

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, 74914 + ... + 87766.

It is an arithmetic number, because the mean of its divisors is an integer number (35901222).

Almost surely, 2^1045463020 is an apocalyptic number.

1045463020 is a gapful number since it is divisible by the number (10) 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 1045463020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1292443992).

1045463020 is an abundant number, since it is smaller than the sum of its proper divisors (1539424964).

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

1045463020 is a wasteful number, since it uses less digits than its factorization.

1045463020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12959 (or 12950 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1045463020 is about 32333.6205829165. The cubic root of 1045463020 is about 1014.9303162624.

The spelling of 1045463020 in words is "one billion, forty-five million, four hundred sixty-three thousand, twenty".