1047821458 has 8 divisors (see below), whose sum is σ = 1571944752. Its totient is φ = 523839876.

The previous prime is 1047821413. The next prime is 1047821459. The reversal of 1047821458 is 8541287401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1047821458.

It is not an unprimeable number, because it can be changed into a prime (1047821459) 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 3 ways as a sum of consecutive naturals, for example, 14460 + ... + 48007.

It is an arithmetic number, because the mean of its divisors is an integer number (196493094).

Almost surely, 2^1047821458 is an apocalyptic number.

1047821458 is a deficient number, since it is larger than the sum of its proper divisors (524123294).

1047821458 is an equidigital number, since it uses as much as digits as its factorization.

1047821458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70856.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 1047821458 is about 32370.0704046191. The cubic root of 1047821458 is about 1015.6929297340.

The spelling of 1047821458 in words is "one billion, forty-seven million, eight hundred twenty-one thousand, four hundred fifty-eight".