633305340 has 72 divisors (see below), whose sum is σ = 2022143760. Its totient is φ = 159992064.

The previous prime is 633305297. The next prime is 633305347. The reversal of 633305340 is 43503336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633305347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89169 + ... + 96008.

It is an arithmetic number, because the mean of its divisors is an integer number (28085330).

Almost surely, 2^633305340 is an apocalyptic number.

633305340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

633305340 is an abundant number, since it is smaller than the sum of its proper divisors (1388838420).

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

633305340 is a wasteful number, since it uses less digits than its factorization.

633305340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185211 (or 185206 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 27.

The square root of 633305340 is about 25165.5586069533. The cubic root of 633305340 is about 858.7585024870.

Adding to 633305340 its reverse (43503336), we get a palindrome (676808676).

The spelling of 633305340 in words is "six hundred thirty-three million, three hundred five thousand, three hundred forty".