43142232 has 32 divisors (see below), whose sum is σ = 123264000. Its totient is φ = 12326304.

The previous prime is 43142213. The next prime is 43142303. The reversal of 43142232 is 23224134.

It is a super-2 number, since 2×43142232² = 3722504363883648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 43142199 and 43142208.

It is a congruent number.

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, 128232 + ... + 128567.

It is an arithmetic number, because the mean of its divisors is an integer number (3852000).

Almost surely, 2^43142232 is an apocalyptic number.

43142232 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43142232 is an abundant number, since it is smaller than the sum of its proper divisors (80121768).

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

43142232 is a wasteful number, since it uses less digits than its factorization.

43142232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256815 (or 256811 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 43142232 is about 6568.2746592998. The cubic root of 43142232 is about 350.7256563588.

Adding to 43142232 its reverse (23224134), we get a palindrome (66366366).

The spelling of 43142232 in words is "forty-three million, one hundred forty-two thousand, two hundred thirty-two".