1347779448 has 48 divisors (see below), whose sum is σ = 3864959280. Its totient is φ = 422832384.

The previous prime is 1347779443. The next prime is 1347779449. The reversal of 1347779448 is 8449777431.

It is a junction number, because it is equal to n+sod(n) for n = 1347779394 and 1347779403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347779443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 549340 + ... + 551787.

It is an arithmetic number, because the mean of its divisors is an integer number (80519985).

Almost surely, 2^1347779448 is an apocalyptic number.

1347779448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1347779448 is an abundant number, since it is smaller than the sum of its proper divisors (2517179832).

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

1347779448 is a wasteful number, since it uses less digits than its factorization.

1347779448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101156 (or 1101149 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 1347779448 is about 36712.1158202575. The cubic root of 1347779448 is about 1104.6031478957.

The spelling of 1347779448 in words is "one billion, three hundred forty-seven million, seven hundred seventy-nine thousand, four hundred forty-eight".