681302270 has 16 divisors (see below), whose sum is σ = 1337830128. Its totient is φ = 247746240.

The previous prime is 681302261. The next prime is 681302287. The reversal of 681302270 is 72203186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3096719 + ... + 3096938.

It is an arithmetic number, because the mean of its divisors is an integer number (83614383).

Almost surely, 2^681302270 is an apocalyptic number.

681302270 is a deficient number, since it is larger than the sum of its proper divisors (656527858).

681302270 is a wasteful number, since it uses less digits than its factorization.

681302270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193675.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 681302270 is about 26101.7675646689. The cubic root of 681302270 is about 879.9269352216.

The spelling of 681302270 in words is "six hundred eighty-one million, three hundred two thousand, two hundred seventy".