1343273856 has 64 divisors (see below), whose sum is σ = 3755884800. Its totient is φ = 424189440.

The previous prime is 1343273849. The next prime is 1343273879. The reversal of 1343273856 is 6583723431.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84760 + ... + 99351.

It is an arithmetic number, because the mean of its divisors is an integer number (58685700).

Almost surely, 2^1343273856 is an apocalyptic number.

1343273856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1343273856 is an abundant number, since it is smaller than the sum of its proper divisors (2412610944).

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

1343273856 is a wasteful number, since it uses less digits than its factorization.

1343273856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184147 (or 184135 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 1343273856 is about 36650.7006208613. The cubic root of 1343273856 is about 1103.3708871056.

The spelling of 1343273856 in words is "one billion, three hundred forty-three million, two hundred seventy-three thousand, eight hundred fifty-six".