541630640 has 20 divisors (see below), whose sum is σ = 1259291424. Its totient is φ = 216652224.

The previous prime is 541630633. The next prime is 541630669. The reversal of 541630640 is 46036145.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385112 + ... + 3385271.

Almost surely, 2^541630640 is an apocalyptic number.

It is an amenable number.

541630640 is an abundant number, since it is smaller than the sum of its proper divisors (717660784).

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

541630640 is a wasteful number, since it uses less digits than its factorization.

541630640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770396 (or 6770390 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 541630640 is about 23272.9594164558. The cubic root of 541630640 is about 815.1441349956.

Adding to 541630640 its reverse (46036145), we get a palindrome (587666785).

The spelling of 541630640 in words is "five hundred forty-one million, six hundred thirty thousand, six hundred forty".