1285035342 has 16 divisors (see below), whose sum is σ = 2577839232. Its totient is φ = 427050360.

The previous prime is 1285035337. The next prime is 1285035347. The reversal of 1285035342 is 2435305821.

It is an interprime number because it is at equal distance from previous prime (1285035337) and next prime (1285035347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285035347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321538 + ... + 325509.

It is an arithmetic number, because the mean of its divisors is an integer number (161114952).

Almost surely, 2^1285035342 is an apocalyptic number.

1285035342 is an abundant number, since it is smaller than the sum of its proper divisors (1292803890).

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

1285035342 is a wasteful number, since it uses less digits than its factorization.

1285035342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647383.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1285035342 is about 35847.3896120764. The cubic root of 1285035342 is about 1087.1889359504.

The spelling of 1285035342 in words is "one billion, two hundred eighty-five million, thirty-five thousand, three hundred forty-two".