699240 has 32 divisors (see below), whose sum is σ = 2098080. Its totient is φ = 186432.

The previous prime is 699221. The next prime is 699241. The reversal of 699240 is 42996.

699240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 699198 and 699207.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 699240.

It is not an unprimeable number, because it can be changed into a prime (699241) by changing a digit.

699240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2794 + ... + 3033.

It is an arithmetic number, because the mean of its divisors is an integer number (65565).

2⁶⁹⁹²⁴⁰ is an apocalyptic number.

699240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

699240 is an abundant number, since it is smaller than the sum of its proper divisors (1398840).

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

699240 is a wasteful number, since it uses less digits than its factorization.

699240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841 (or 5837 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 699240 is about 836.2057163163. The cubic root of 699240 is about 88.7582548693.

It can be divided in two parts, 699 and 240, that added together give a palindrome (939).

The spelling of 699240 in words is "six hundred ninety-nine thousand, two hundred forty".