1047905628 has 96 divisors (see below), whose sum is σ = 3067158528. Its totient is φ = 270513600.

The previous prime is 1047905609. The next prime is 1047905629. The reversal of 1047905628 is 8265097401.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1047905628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047905629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150913 + ... + 157703.

It is an arithmetic number, because the mean of its divisors is an integer number (31949568).

Almost surely, 2^1047905628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1047905628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1533579264).

1047905628 is an abundant number, since it is smaller than the sum of its proper divisors (2019252900).

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

1047905628 is a wasteful number, since it uses less digits than its factorization.

1047905628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983 (or 6981 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1047905628 is about 32371.3704992544. The cubic root of 1047905628 is about 1015.7201253929.

The spelling of 1047905628 in words is "one billion, forty-seven million, nine hundred five thousand, six hundred twenty-eight".