641124730 has 16 divisors (see below), whose sum is σ = 1154979720. Its totient is φ = 256237632.

The previous prime is 641124713. The next prime is 641124769. The reversal of 641124730 is 37421146.

It can be written as a sum of positive squares in 4 ways, for example, as 536246649 + 104878081 = 23157^2 + 10241^2 .

It is a super-2 number, since 2×641124730² = 822081838835145800, which contains 22 as substring.

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, 13545 + ... + 38284.

Almost surely, 2^641124730 is an apocalyptic number.

641124730 is a deficient number, since it is larger than the sum of its proper divisors (513854990).

641124730 is a wasteful number, since it uses less digits than its factorization.

641124730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53073.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 641124730 is about 25320.4409519266. The cubic root of 641124730 is about 862.2784050201.

Adding to 641124730 its reverse (37421146), we get a palindrome (678545876).

The spelling of 641124730 in words is "six hundred forty-one million, one hundred twenty-four thousand, seven hundred thirty".