1349525280 has 96 divisors (see below), whose sum is σ = 4501090944. Its totient is φ = 338702336.

The previous prime is 1349525269. The next prime is 1349525311. The reversal of 1349525280 is 825259431.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74532 + ... + 90851.

It is an arithmetic number, because the mean of its divisors is an integer number (46886364).

Almost surely, 2^1349525280 is an apocalyptic number.

1349525280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1349525280 is an abundant number, since it is smaller than the sum of its proper divisors (3151565664).

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

1349525280 is a wasteful number, since it uses less digits than its factorization.

1349525280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165418 (or 165410 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1349525280 is about 36735.8854527831. The cubic root of 1349525280 is about 1105.0798874834.

The spelling of 1349525280 in words is "one billion, three hundred forty-nine million, five hundred twenty-five thousand, two hundred eighty".