1285360738 has 8 divisors (see below), whose sum is σ = 1928196288. Its totient is φ = 642628644.

The previous prime is 1285360733. The next prime is 1285360751. The reversal of 1285360738 is 8370635821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1285360694 and 1285360703.

It is not an unprimeable number, because it can be changed into a prime (1285360733) 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 3 ways as a sum of consecutive naturals, for example, 25995 + ... + 56977.

It is an arithmetic number, because the mean of its divisors is an integer number (241024536).

Almost surely, 2^1285360738 is an apocalyptic number.

1285360738 is a deficient number, since it is larger than the sum of its proper divisors (642835550).

1285360738 is a wasteful number, since it uses less digits than its factorization.

1285360738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51728.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1285360738 is about 35851.9279537377. The cubic root of 1285360738 is about 1087.2806940169.

The spelling of 1285360738 in words is "one billion, two hundred eighty-five million, three hundred sixty thousand, seven hundred thirty-eight".