1048872491 has 8 divisors (see below), whose sum is σ = 1086184944. Its totient is φ = 1012209120.

The previous prime is 1048872479. The next prime is 1048872497. The reversal of 1048872491 is 1942788401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1048872491 is a prime.

It is a super-2 number, since 2×1048872491² = 2200267004753090162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1048872497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158981 + ... + 165446.

It is an arithmetic number, because the mean of its divisors is an integer number (135773118).

Almost surely, 2^1048872491 is an apocalyptic number.

1048872491 is a deficient number, since it is larger than the sum of its proper divisors (37312453).

1048872491 is an equidigital number, since it uses as much as digits as its factorization.

1048872491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324541.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1048872491 is about 32386.3009774194. The cubic root of 1048872491 is about 1016.0324182492.

The spelling of 1048872491 in words is "one billion, forty-eight million, eight hundred seventy-two thousand, four hundred ninety-one".