1402563385 has 8 divisors (see below), whose sum is σ = 1683319176. Its totient is φ = 1121888640.

The previous prime is 1402563377. The next prime is 1402563397. The reversal of 1402563385 is 5833652041.

It can be written as a sum of positive squares in 4 ways, for example, as 521482896 + 881080489 = 22836^2 + 29683^2 .

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

It is not a de Polignac number, because 1402563385 - 2³ = 1402563377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 28477 + ... + 60133.

It is an arithmetic number, because the mean of its divisors is an integer number (210414897).

Almost surely, 2^1402563385 is an apocalyptic number.

It is an amenable number.

1402563385 is a deficient number, since it is larger than the sum of its proper divisors (280755791).

1402563385 is an equidigital number, since it uses as much as digits as its factorization.

1402563385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40523.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1402563385 is about 37450.8128750232. The cubic root of 1402563385 is about 1119.3712949461.

It can be divided in two parts, 140256 and 3385, that added together give a square (143641 = 379²).

The spelling of 1402563385 in words is "one billion, four hundred two million, five hundred sixty-three thousand, three hundred eighty-five".