699420384 has 144 divisors (see below), whose sum is σ = 2167074000. Its totient is φ = 212686848.

The previous prime is 699420349. The next prime is 699420401. The reversal of 699420384 is 483024996.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332167 + ... + 334265.

It is an arithmetic number, because the mean of its divisors is an integer number (15049125).

Almost surely, 2^699420384 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 699420384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1083537000).

699420384 is an abundant number, since it is smaller than the sum of its proper divisors (1467653616).

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

699420384 is a wasteful number, since it uses less digits than its factorization.

699420384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217 (or 2206 counting only the distinct ones).

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

The square root of 699420384 is about 26446.5571294261. The cubic root of 699420384 is about 887.6588658013.

The spelling of 699420384 in words is "six hundred ninety-nine million, four hundred twenty thousand, three hundred eighty-four".