210423132 has 18 divisors (see below), whose sum is σ = 531903008. Its totient is φ = 70141032.

The previous prime is 210423131. The next prime is 210423139. The reversal of 210423132 is 231324012.

210423132 is a `hidden beast` number, since 210 + 423 + 1 + 32 = 666.

210423132 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-5 number, since 5×210423132⁵ (a number of 43 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210423131) 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, 2922508 + ... + 2922579.

Almost surely, 2^210423132 is an apocalyptic number.

It is an amenable number.

210423132 is an abundant number, since it is smaller than the sum of its proper divisors (321479876).

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

210423132 is a wasteful number, since it uses less digits than its factorization.

210423132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845097 (or 5845092 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 210423132 is about 14505.9688404463. The cubic root of 210423132 is about 594.7911438889.

Adding to 210423132 its reverse (231324012), we get a palindrome (441747144).

The spelling of 210423132 in words is "two hundred ten million, four hundred twenty-three thousand, one hundred thirty-two".