1047385872 has 120 divisors (see below), whose sum is σ = 3181546368. Its totient is φ = 319737600.

The previous prime is 1047385853. The next prime is 1047385879. The reversal of 1047385872 is 2785837401.

It is not an unprimeable number, because it can be changed into a prime (1047385879) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 243097 + ... + 247367.

Almost surely, 2^1047385872 is an apocalyptic number.

1047385872 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 1047385872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590773184).

1047385872 is an abundant number, since it is smaller than the sum of its proper divisors (2134160496).

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

1047385872 is a wasteful number, since it uses less digits than its factorization.

1047385872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429 (or 4420 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 1047385872 is about 32363.3414838456. The cubic root of 1047385872 is about 1015.5521669043.

The spelling of 1047385872 in words is "one billion, forty-seven million, three hundred eighty-five thousand, eight hundred seventy-two".