700440 has 64 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 172032.

The previous prime is 700433. The next prime is 700459. The reversal of 700440 is 44007.

700440 = T₂₁₉ + T₂₂₀ + ... + T₂₄₄.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 700440.

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 15 ways as a sum of consecutive naturals, for example, 1336 + ... + 1784.

2⁷⁰⁰⁴⁴⁰ 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 700440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1134000).

700440 is an abundant number, since it is smaller than the sum of its proper divisors (1567560).

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

700440 is a wasteful number, since it uses less digits than its factorization.

700440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 700440 is about 836.9229355204. The cubic root of 700440 is about 88.8089999806.

Adding to 700440 its reverse (44007), we get a palindrome (744447).

The spelling of 700440 in words is "seven hundred thousand, four hundred forty", and thus it is an iban number.