641229714 has 12 divisors (see below), whose sum is σ = 1389331086. Its totient is φ = 213743232.

The previous prime is 641229713. The next prime is 641229739. The reversal of 641229714 is 417922146.

It is a happy number.

641229714 is a `hidden beast` number, since 641 + 2 + 2 + 9 + 7 + 1 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 421686225 + 219543489 = 20535^2 + 14817^2 .

It is a super-2 number, since 2×641229714² = 822351092233043592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641229713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17811919 + ... + 17811954.

Almost surely, 2^641229714 is an apocalyptic number.

641229714 is an abundant number, since it is smaller than the sum of its proper divisors (748101372).

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

641229714 is a wasteful number, since it uses less digits than its factorization.

641229714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35623881 (or 35623878 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 641229714 is about 25322.5139747222. The cubic root of 641229714 is about 862.3254684027.

The spelling of 641229714 in words is "six hundred forty-one million, two hundred twenty-nine thousand, seven hundred fourteen".