1048409855 has 4 divisors (see below), whose sum is σ = 1258091832. Its totient is φ = 838727880.

The previous prime is 1048409833. The next prime is 1048409891. The reversal of 1048409855 is 5589048401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5589048401 = 17 ⋅328767553.

It is a de Polignac number, because none of the positive numbers 2^k-1048409855 is a prime.

It is a super-2 number, since 2×1048409855² = 2198326448122242050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104840981 + ... + 104840990.

It is an arithmetic number, because the mean of its divisors is an integer number (314522958).

Almost surely, 2^1048409855 is an apocalyptic number.

1048409855 is a deficient number, since it is larger than the sum of its proper divisors (209681977).

1048409855 is an equidigital number, since it uses as much as digits as its factorization.

1048409855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209681976.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 1048409855 is about 32379.1577253022. The cubic root of 1048409855 is about 1015.8830126398.

The spelling of 1048409855 in words is "one billion, forty-eight million, four hundred nine thousand, eight hundred fifty-five".