172022652 has 18 divisors (see below), whose sum is σ = 434835128. Its totient is φ = 57340872.

The previous prime is 172022651. The next prime is 172022663. The reversal of 172022652 is 256220271.

172022652 is a `hidden beast` number, since 1 + 7 + 2 + 0 + 2 + 2 + 652 = 666.

172022652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×172022652² = 59183585602226208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172022651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2389168 + ... + 2389239.

Almost surely, 2^172022652 is an apocalyptic number.

172022652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172022652 is an abundant number, since it is smaller than the sum of its proper divisors (262812476).

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

172022652 is a wasteful number, since it uses less digits than its factorization.

172022652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778417 (or 4778412 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 172022652 is about 13115.7406195762. The cubic root of 172022652 is about 556.1541892465.

The spelling of 172022652 in words is "one hundred seventy-two million, twenty-two thousand, six hundred fifty-two".