632545820 has 24 divisors (see below), whose sum is σ = 1328975424. Its totient is φ = 252898496.

The previous prime is 632545817. The next prime is 632545829. The reversal of 632545820 is 28545236.

632545820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×632545820² = 800228428798944800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632545829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44642 + ... + 57078.

It is an arithmetic number, because the mean of its divisors is an integer number (55373976).

Almost surely, 2^632545820 is an apocalyptic number.

It is an amenable number.

632545820 is an abundant number, since it is smaller than the sum of its proper divisors (696429604).

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

632545820 is a wasteful number, since it uses less digits than its factorization.

632545820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14989 (or 14987 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 632545820 is about 25150.4636140171. The cubic root of 632545820 is about 858.4150635300.

The spelling of 632545820 in words is "six hundred thirty-two million, five hundred forty-five thousand, eight hundred twenty".