1400885 has 8 divisors (see below), whose sum is σ = 1780056. Its totient is φ = 1054720.

The previous prime is 1400881. The next prime is 1400887. The reversal of 1400885 is 5880041.

It can be written as a sum of positive squares in 4 ways, for example, as 232324 + 1168561 = 482^2 + 1081^2 .

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

It is not a de Polignac number, because 1400885 - 2² = 1400881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8156 + ... + 8325.

It is an arithmetic number, because the mean of its divisors is an integer number (222507).

2^1400885 is an apocalyptic number.

It is an amenable number.

1400885 is a deficient number, since it is larger than the sum of its proper divisors (379171).

1400885 is a wasteful number, since it uses less digits than its factorization.

1400885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16503.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1400885 is about 1183.5898782940. The cubic root of 1400885 is about 111.8924616170.

The spelling of 1400885 in words is "one million, four hundred thousand, eight hundred eighty-five".