2172435630 has 16 divisors (see below), whose sum is σ = 5213845584. Its totient is φ = 579316160.

The previous prime is 2172435613. The next prime is 2172435631. The reversal of 2172435630 is 365342712.

It is a junction number, because it is equal to n+sod(n) for n = 2172435591 and 2172435600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172435631) 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, 36207231 + ... + 36207290.

It is an arithmetic number, because the mean of its divisors is an integer number (325865349).

Almost surely, 2^2172435630 is an apocalyptic number.

2172435630 is an abundant number, since it is smaller than the sum of its proper divisors (3041409954).

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

2172435630 is a wasteful number, since it uses less digits than its factorization.

2172435630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72414531.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 2172435630 is about 46609.3942247698. The cubic root of 2172435630 is about 1295.1367863344.

The spelling of 2172435630 in words is "two billion, one hundred seventy-two million, four hundred thirty-five thousand, six hundred thirty".