633451264 has 36 divisors (see below), whose sum is σ = 1271825856. Its totient is φ = 314872832.

The previous prime is 633451261. The next prime is 633451367. The reversal of 633451264 is 462154336.

It is not an unprimeable number, because it can be changed into a prime (633451261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37137 + ... + 51439.

It is an arithmetic number, because the mean of its divisors is an integer number (35328496).

Almost surely, 2^633451264 is an apocalyptic number.

633451264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 633451264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635912928).

633451264 is an abundant number, since it is smaller than the sum of its proper divisors (638374592).

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

633451264 is a wasteful number, since it uses less digits than its factorization.

633451264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14492 (or 14478 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 633451264 is about 25168.4577199319. The cubic root of 633451264 is about 858.8244547979.

The spelling of 633451264 in words is "six hundred thirty-three million, four hundred fifty-one thousand, two hundred sixty-four".