210232140 has 24 divisors (see below), whose sum is σ = 588650160. Its totient is φ = 56061888.

The previous prime is 210232129. The next prime is 210232153. The reversal of 210232140 is 41232012.

210232140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751875 + ... + 1751994.

It is an arithmetic number, because the mean of its divisors is an integer number (24527090).

Almost surely, 2^210232140 is an apocalyptic number.

210232140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210232140 is an abundant number, since it is smaller than the sum of its proper divisors (378418020).

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

210232140 is a wasteful number, since it uses less digits than its factorization.

210232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503881 (or 3503879 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 210232140 is about 14499.3841248516. The cubic root of 210232140 is about 594.6111339942.

Adding to 210232140 its reverse (41232012), we get a palindrome (251464152).

The spelling of 210232140 in words is "two hundred ten million, two hundred thirty-two thousand, one hundred forty".