699762140 has 144 divisors (see below), whose sum is σ = 1882258560. Its totient is φ = 216074880.

The previous prime is 699762139. The next prime is 699762157. The reversal of 699762140 is 41267996.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 699762091 and 699762100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1498187 + ... + 1498653.

It is an arithmetic number, because the mean of its divisors is an integer number (13071240).

Almost surely, 2^699762140 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 699762140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941129280).

699762140 is an abundant number, since it is smaller than the sum of its proper divisors (1182496420).

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

699762140 is a wasteful number, since it uses less digits than its factorization.

699762140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 699762140 is about 26453.0175972421. The cubic root of 699762140 is about 887.8034204226.

The spelling of 699762140 in words is "six hundred ninety-nine million, seven hundred sixty-two thousand, one hundred forty".