210140032 has 32 divisors (see below), whose sum is σ = 433081800. Its totient is φ = 101445120.

The previous prime is 210140023. The next prime is 210140039. The reversal of 210140032 is 230041012.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×210140032² = 88317666097922048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210139994 and 210140021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210140039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24594 + ... + 32017.

Almost surely, 2^210140032 is an apocalyptic number.

It is an amenable number.

210140032 is an abundant number, since it is smaller than the sum of its proper divisors (222941768).

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

210140032 is an equidigital number, since it uses as much as digits as its factorization.

210140032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56654 (or 56642 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 210140032 is about 14496.2075040336. The cubic root of 210140032 is about 594.5242832669.

Adding to 210140032 its reverse (230041012), we get a palindrome (440181044).

The spelling of 210140032 in words is "two hundred ten million, one hundred forty thousand, thirty-two".