1400856 has 16 divisors (see below), whose sum is σ = 3502200. Its totient is φ = 466944.

The previous prime is 1400821. The next prime is 1400863. The reversal of 1400856 is 6580041.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 58369 = 1400856 / (1 + 4 + 0 + 0 + 8 + 5 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29161 + ... + 29208.

2^1400856 is an apocalyptic number.

It is an amenable number.

1400856 is an abundant number, since it is smaller than the sum of its proper divisors (2101344).

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

1400856 is a wasteful number, since it uses less digits than its factorization.

1400856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58378 (or 58374 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1400856 is about 1183.5776273654. The cubic root of 1400856 is about 111.8916895089.

Adding to 1400856 its reverse (6580041), we get a palindrome (7980897).

The spelling of 1400856 in words is "one million, four hundred thousand, eight hundred fifty-six".