1400870 has 32 divisors (see below), whose sum is σ = 2717280. Its totient is φ = 518400.

The previous prime is 1400863. The next prime is 1400873. The reversal of 1400870 is 780041.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13820 + ... + 13920.

It is an arithmetic number, because the mean of its divisors is an integer number (84915).

2^1400870 is an apocalyptic number.

1400870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400870 is a deficient number, since it is larger than the sum of its proper divisors (1316410).

1400870 is a wasteful number, since it uses less digits than its factorization.

1400870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1400870 is about 1183.5835416226. The cubic root of 1400870 is about 111.8920622521.

The spelling of 1400870 in words is "one million, four hundred thousand, eight hundred seventy".