632645970 has 64 divisors (see below), whose sum is σ = 1659056256. Its totient is φ = 153121280.

The previous prime is 632645969. The next prime is 632646023. The reversal of 632645970 is 79546236.

632645970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281692 + ... + 283928.

It is an arithmetic number, because the mean of its divisors is an integer number (25922754).

Almost surely, 2^632645970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 632645970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829528128).

632645970 is an abundant number, since it is smaller than the sum of its proper divisors (1026410286).

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

632645970 is a wasteful number, since it uses less digits than its factorization.

632645970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 632645970 is about 25152.4545521903. The cubic root of 632645970 is about 858.4603649818.

The spelling of 632645970 in words is "six hundred thirty-two million, six hundred forty-five thousand, nine hundred seventy".