1400704 has 32 divisors (see below), whose sum is σ = 2888640. Its totient is φ = 675840.

The previous prime is 1400701. The next prime is 1400731. The reversal of 1400704 is 4070041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3792 + ... + 4144.

It is an arithmetic number, because the mean of its divisors is an integer number (90270).

2^1400704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444320).

1400704 is an abundant number, since it is smaller than the sum of its proper divisors (1487936).

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

1400704 is an equidigital number, since it uses as much as digits as its factorization.

1400704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1400704 is about 1183.5134135277. The cubic root of 1400704 is about 111.8876424234.

Adding to 1400704 its reverse (4070041), we get a palindrome (5470745).

The spelling of 1400704 in words is "one million, four hundred thousand, seven hundred four".