699857040 has 80 divisors (see below), whose sum is σ = 2189913408. Its totient is φ = 184877568.

The previous prime is 699857027. The next prime is 699857047. The reversal of 699857040 is 40758996.

699857040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (699857047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12054 + ... + 39306.

Almost surely, 2^699857040 is an apocalyptic number.

699857040 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 699857040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094956704).

699857040 is an abundant number, since it is smaller than the sum of its proper divisors (1490056368).

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

699857040 is a wasteful number, since it uses less digits than its factorization.

699857040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27376 (or 27370 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 699857040 is about 26454.8112826382. The cubic root of 699857040 is about 887.8435525053.

The spelling of 699857040 in words is "six hundred ninety-nine million, eight hundred fifty-seven thousand, forty".