699832440 has 128 divisors (see below), whose sum is σ = 2408140800. Its totient is φ = 180593280.

The previous prime is 699832433. The next prime is 699832447. The reversal of 699832440 is 44238996.

699832440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (699832433) and next prime (699832447).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699832447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23029 + ... + 43931.

It is an arithmetic number, because the mean of its divisors is an integer number (18813600).

Almost surely, 2^699832440 is an apocalyptic number.

699832440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699832440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204070400).

699832440 is an abundant number, since it is smaller than the sum of its proper divisors (1708308360).

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

699832440 is a wasteful number, since it uses less digits than its factorization.

699832440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20954 (or 20944 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 699832440 is about 26454.3463347708. The cubic root of 699832440 is about 887.8331498059.

The spelling of 699832440 in words is "six hundred ninety-nine million, eight hundred thirty-two thousand, four hundred forty".