1402385 has 8 divisors (see below), whose sum is σ = 1700136. Its totient is φ = 1110400.

The previous prime is 1402369. The next prime is 1402391. The reversal of 1402385 is 5832041.

It can be written as a sum of positive squares in 4 ways, for example, as 238144 + 1164241 = 488^2 + 1079^2 .

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

It is not a de Polignac number, because 1402385 - 2⁴ = 1402369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1402385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884 + ... + 1893.

It is an arithmetic number, because the mean of its divisors is an integer number (212517).

2^1402385 is an apocalyptic number.

It is an amenable number.

1402385 is a deficient number, since it is larger than the sum of its proper divisors (297751).

1402385 is a wasteful number, since it uses less digits than its factorization.

1402385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1402385 is about 1184.2233741993. The cubic root of 1402385 is about 111.9323837194.

The spelling of 1402385 in words is "one million, four hundred two thousand, three hundred eighty-five".