632640954 has 16 divisors (see below), whose sum is σ = 1380307680. Its totient is φ = 191709360.

The previous prime is 632640949. The next prime is 632640959. The reversal of 632640954 is 459046236.

It is an interprime number because it is at equal distance from previous prime (632640949) and next prime (632640959).

It is not an unprimeable number, because it can be changed into a prime (632640959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4792669 + ... + 4792800.

It is an arithmetic number, because the mean of its divisors is an integer number (86269230).

Almost surely, 2^632640954 is an apocalyptic number.

632640954 is an abundant number, since it is smaller than the sum of its proper divisors (747666726).

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

632640954 is a wasteful number, since it uses less digits than its factorization.

632640954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9585485.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 632640954 is about 25152.3548400542. The cubic root of 632640954 is about 858.4580961781.

The spelling of 632640954 in words is "six hundred thirty-two million, six hundred forty thousand, nine hundred fifty-four".