705131328 has 112 divisors (see below), whose sum is σ = 2050962624. Its totient is φ = 212029440.

The previous prime is 705131261. The next prime is 705131333. The reversal of 705131328 is 823131507.

It is a junction number, because it is equal to n+sod(n) for n = 705131295 and 705131304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288126 + ... + 290562.

Almost surely, 2^705131328 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 705131328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025481312).

705131328 is an abundant number, since it is smaller than the sum of its proper divisors (1345831296).

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

705131328 is a wasteful number, since it uses less digits than its factorization.

705131328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600 (or 2590 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 705131328 is about 26554.3090288563. The cubic root of 705131328 is about 890.0683059977.

The spelling of 705131328 in words is "seven hundred five million, one hundred thirty-one thousand, three hundred twenty-eight".