1285479032 has 8 divisors (see below), whose sum is σ = 2410273200. Its totient is φ = 642739512.

The previous prime is 1285479031. The next prime is 1285479043. The reversal of 1285479032 is 2309745821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285479031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80342432 + ... + 80342447.

It is an arithmetic number, because the mean of its divisors is an integer number (301284150).

Almost surely, 2^1285479032 is an apocalyptic number.

It is an amenable number.

1285479032 is a deficient number, since it is larger than the sum of its proper divisors (1124794168).

1285479032 is a wasteful number, since it uses less digits than its factorization.

1285479032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160684885 (or 160684881 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1285479032 is about 35853.5776736437. The cubic root of 1285479032 is about 1087.3140477759.

The spelling of 1285479032 in words is "one billion, two hundred eighty-five million, four hundred seventy-nine thousand, thirty-two".