633493140 has 96 divisors (see below), whose sum is σ = 2115348480. Its totient is φ = 138500736.

The previous prime is 633493103. The next prime is 633493141. The reversal of 633493140 is 41394336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633493141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23130 + ... + 42449.

It is an arithmetic number, because the mean of its divisors is an integer number (22034880).

Almost surely, 2^633493140 is an apocalyptic number.

633493140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

633493140 is an abundant number, since it is smaller than the sum of its proper divisors (1481855340).

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

633493140 is a wasteful number, since it uses less digits than its factorization.

633493140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65621 (or 65619 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 633493140 is about 25169.2896204879. The cubic root of 633493140 is about 858.8433793480.

The spelling of 633493140 in words is "six hundred thirty-three million, four hundred ninety-three thousand, one hundred forty".