630433541 has 4 divisors (see below), whose sum is σ = 631687392. Its totient is φ = 629179692.

The previous prime is 630433537. The next prime is 630433543. The reversal of 630433541 is 145334036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 630433541 - 2² = 630433537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630433543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626171 + ... + 627176.

It is an arithmetic number, because the mean of its divisors is an integer number (157921848).

Almost surely, 2^630433541 is an apocalyptic number.

It is an amenable number.

630433541 is a deficient number, since it is larger than the sum of its proper divisors (1253851).

630433541 is a wasteful number, since it uses less digits than its factorization.

630433541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253850.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 630433541 is about 25108.4356541781. The cubic root of 630433541 is about 857.4584876786.

Adding to 630433541 its reverse (145334036), we get a palindrome (775767577).

The spelling of 630433541 in words is "six hundred thirty million, four hundred thirty-three thousand, five hundred forty-one".