43142664 has 32 divisors (see below), whose sum is σ = 112547520. Its totient is φ = 13755456.

The previous prime is 43142647. The next prime is 43142713. The reversal of 43142664 is 46624134.

43142664 = 142² + 143² + ... + 509².

It is a super-2 number, since 2×43142664² = 3722578914033792, which contains 22 as substring.

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

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, 38527 + ... + 39630.

It is an arithmetic number, because the mean of its divisors is an integer number (3517110).

Almost surely, 2^43142664 is an apocalyptic number.

It is an amenable number.

43142664 is an abundant number, since it is smaller than the sum of its proper divisors (69404856).

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

43142664 is a wasteful number, since it uses less digits than its factorization.

43142664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78189 (or 78185 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 43142664 is about 6568.3075445658. The cubic root of 43142664 is about 350.7268270059.

Adding to 43142664 its reverse (46624134), we get a palindrome (89766798).

The spelling of 43142664 in words is "forty-three million, one hundred forty-two thousand, six hundred sixty-four".