1049728380 has 24 divisors (see below), whose sum is σ = 2939239632. Its totient is φ = 279927552.

The previous prime is 1049728373. The next prime is 1049728403. The reversal of 1049728380 is 838279401.

It is a super-2 number, since 2×1049728380² = 2203859343554848800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8747677 + ... + 8747796.

It is an arithmetic number, because the mean of its divisors is an integer number (122468318).

Almost surely, 2^1049728380 is an apocalyptic number.

1049728380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049728380 is an abundant number, since it is smaller than the sum of its proper divisors (1889511252).

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

1049728380 is a wasteful number, since it uses less digits than its factorization.

1049728380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17495485 (or 17495483 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1049728380 is about 32399.5120333625. The cubic root of 1049728380 is about 1016.3087068506.

The spelling of 1049728380 in words is "one billion, forty-nine million, seven hundred twenty-eight thousand, three hundred eighty".