681042010 has 16 divisors (see below), whose sum is σ = 1337319072. Its totient is φ = 247651600.

The previous prime is 681042001. The next prime is 681042013. The reversal of 681042010 is 10240186.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (681042013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3095536 + ... + 3095755.

It is an arithmetic number, because the mean of its divisors is an integer number (83582442).

Almost surely, 2^681042010 is an apocalyptic number.

681042010 is a deficient number, since it is larger than the sum of its proper divisors (656277062).

681042010 is a wasteful number, since it uses less digits than its factorization.

681042010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191309.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 681042010 is about 26096.7816023356. The cubic root of 681042010 is about 879.8148758312.

Adding to 681042010 its reverse (10240186), we get a palindrome (691282196).

The spelling of 681042010 in words is "six hundred eighty-one million, forty-two thousand, ten".