70280768 has 28 divisors (see below), whose sum is σ = 140913612. Its totient is φ = 34775040.

The previous prime is 70280761. The next prime is 70280779. The reversal of 70280768 is 86708207.

It can be written as a sum of positive squares in 2 ways, for example, as 16581184 + 53699584 = 4072^2 + 7328^2 .

It is not an unprimeable number, because it can be changed into a prime (70280761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (5032629).

Almost surely, 2^70280768 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 70280768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70456806).

70280768 is an abundant number, since it is smaller than the sum of its proper divisors (70632844).

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

70280768 is a wasteful number, since it uses less digits than its factorization.

70280768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11430 (or 11420 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 70280768 is about 8383.3625711882. The cubic root of 70280768 is about 412.6788068399.

The spelling of 70280768 in words is "seventy million, two hundred eighty thousand, seven hundred sixty-eight".