641662030 has 16 divisors (see below), whose sum is σ = 1155389904. Its totient is φ = 256576320.

The previous prime is 641662019. The next prime is 641662067. The reversal of 641662030 is 30266146.

It is a self number, because there is not a number n which added to its sum of digits gives 641662030.

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, 24985 + ... + 43675.

It is an arithmetic number, because the mean of its divisors is an integer number (72211869).

Almost surely, 2^641662030 is an apocalyptic number.

641662030 is a deficient number, since it is larger than the sum of its proper divisors (513727874).

641662030 is a wasteful number, since it uses less digits than its factorization.

641662030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22131.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 641662030 is about 25331.0487347050. The cubic root of 641662030 is about 862.5192176632.

The spelling of 641662030 in words is "six hundred forty-one million, six hundred sixty-two thousand, thirty".