700128540 has 72 divisors (see below), whose sum is σ = 2145670800. Its totient is φ = 184771584.

The previous prime is 700128529. The next prime is 700128577. The reversal of 700128540 is 45821007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2590 + ... + 37509.

Almost surely, 2^700128540 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 700128540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072835400).

700128540 is an abundant number, since it is smaller than the sum of its proper divisors (1445542260).

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

700128540 is a wasteful number, since it uses less digits than its factorization.

700128540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40211 (or 40206 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 700128540 is about 26459.9421768076. The cubic root of 700128540 is about 887.9583465974.

Adding to 700128540 its reverse (45821007), we get a palindrome (745949547).

The spelling of 700128540 in words is "seven hundred million, one hundred twenty-eight thousand, five hundred forty".