1047257428 has 48 divisors (see below), whose sum is σ = 2208286080. Its totient is φ = 424521216.

The previous prime is 1047257423. The next prime is 1047257429. The reversal of 1047257428 is 8247527401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047257423) 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 15 ways as a sum of consecutive naturals, for example, 454776 + ... + 457072.

It is an arithmetic number, because the mean of its divisors is an integer number (46005960).

Almost surely, 2^1047257428 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 1047257428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104143040).

1047257428 is an abundant number, since it is smaller than the sum of its proper divisors (1161028652).

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

1047257428 is a wasteful number, since it uses less digits than its factorization.

1047257428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3182 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 1047257428 is about 32361.3570172822. The cubic root of 1047257428 is about 1015.5106518274.

The spelling of 1047257428 in words is "one billion, forty-seven million, two hundred fifty-seven thousand, four hundred twenty-eight".