1045537680 has 320 divisors, whose sum is σ = 3759187968. Its totient is φ = 237895680.

The previous prime is 1045537663. The next prime is 1045537687. The reversal of 1045537680 is 867355401.

It is not an unprimeable number, because it can be changed into a prime (1045537687) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4068112 + ... + 4068368.

Almost surely, 2^1045537680 is an apocalyptic number.

1045537680 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 1045537680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1879593984).

1045537680 is an abundant number, since it is smaller than the sum of its proper divisors (2713650288).

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

1045537680 is a wasteful number, since it uses less digits than its factorization.

1045537680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 1045537680 is about 32334.7750881307. The cubic root of 1045537680 is about 1014.9544755399.

The spelling of 1045537680 in words is "one billion, forty-five million, five hundred thirty-seven thousand, six hundred eighty".