633245440 has 36 divisors (see below), whose sum is σ = 1516823784. Its totient is φ = 253297664.

The previous prime is 633245423. The next prime is 633245443. The reversal of 633245440 is 44542336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633245443) 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, 246082 + ... + 248641.

It is an arithmetic number, because the mean of its divisors is an integer number (42133994).

Almost surely, 2^633245440 is an apocalyptic number.

It is an amenable number.

633245440 is an abundant number, since it is smaller than the sum of its proper divisors (883578344).

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

633245440 is an equidigital number, since it uses as much as digits as its factorization.

633245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494744 (or 494730 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 633245440 is about 25164.3684601859. The cubic root of 633245440 is about 858.7314269449.

Adding to 633245440 its reverse (44542336), we get a palindrome (677787776).

The spelling of 633245440 in words is "six hundred thirty-three million, two hundred forty-five thousand, four hundred forty".