43142442 has 24 divisors (see below), whose sum is σ = 100372896. Its totient is φ = 12326328.

The previous prime is 43142423. The next prime is 43142467. The reversal of 43142442 is 24424134.

It is a happy number.

It is a super-2 number, since 2×43142442² = 3722540603446728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73078 + ... + 73665.

It is an arithmetic number, because the mean of its divisors is an integer number (4182204).

Almost surely, 2^43142442 is an apocalyptic number.

43142442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

43142442 is an abundant number, since it is smaller than the sum of its proper divisors (57230454).

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

43142442 is a wasteful number, since it uses less digits than its factorization.

43142442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146762 (or 146755 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 43142442 is about 6568.2906452136. The cubic root of 43142442 is about 350.7262254244.

Adding to 43142442 its reverse (24424134), we get a palindrome (67566576).

The spelling of 43142442 in words is "forty-three million, one hundred forty-two thousand, four hundred forty-two".