232130040 has 32 divisors (see below), whose sum is σ = 696390480. Its totient is φ = 61901312.

The previous prime is 232130029. The next prime is 232130047. The reversal of 232130040 is 40031232.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232130047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967089 + ... + 967328.

Almost surely, 2^232130040 is an apocalyptic number.

232130040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232130040 is an abundant number, since it is smaller than the sum of its proper divisors (464260440).

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

232130040 is a wasteful number, since it uses less digits than its factorization.

232130040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934431 (or 1934427 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 232130040 is about 15235.8143858476. The cubic root of 232130040 is about 614.5781494638.

Adding to 232130040 its reverse (40031232), we get a palindrome (272161272).

The spelling of 232130040 in words is "two hundred thirty-two million, one hundred thirty thousand, forty".