1400859 has 12 divisors (see below), whose sum is σ = 2089152. Its totient is φ = 903600.

The previous prime is 1400821. The next prime is 1400863. The reversal of 1400859 is 9580041.

It is not a de Polignac number, because 1400859 - 2⁷ = 1400731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1400809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2232 + ... + 2789.

It is an arithmetic number, because the mean of its divisors is an integer number (174096).

2^1400859 is an apocalyptic number.

1400859 is a deficient number, since it is larger than the sum of its proper divisors (688293).

1400859 is a wasteful number, since it uses less digits than its factorization.

1400859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058 (or 5055 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1400859 is about 1183.5788947088. The cubic root of 1400859 is about 111.8917693827.

The spelling of 1400859 in words is "one million, four hundred thousand, eight hundred fifty-nine".