1049872720 has 80 divisors (see below), whose sum is σ = 2743074432. Its totient is φ = 370782720.

The previous prime is 1049872709. The next prime is 1049872739. The reversal of 1049872720 is 272789401.

1049872720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1049872720² = 2204465456400396800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975 + ... + 45865.

Almost surely, 2^1049872720 is an apocalyptic number.

1049872720 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 1049872720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371537216).

1049872720 is an abundant number, since it is smaller than the sum of its proper divisors (1693201712).

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

1049872720 is a wasteful number, since it uses less digits than its factorization.

1049872720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43940 (or 43934 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1049872720 is about 32401.7394594796. The cubic root of 1049872720 is about 1016.3552862892.

The spelling of 1049872720 in words is "one billion, forty-nine million, eight hundred seventy-two thousand, seven hundred twenty".