43542402 has 16 divisors (see below), whose sum is σ = 89110560. Its totient is φ = 14176512.

The previous prime is 43542337. The next prime is 43542409. The reversal of 43542402 is 20424534.

It is not an unprimeable number, because it can be changed into a prime (43542409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 84127 + ... + 84642.

It is an arithmetic number, because the mean of its divisors is an integer number (5569410).

Almost surely, 2^43542402 is an apocalyptic number.

43542402 is an abundant number, since it is smaller than the sum of its proper divisors (45568158).

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

43542402 is a wasteful number, since it uses less digits than its factorization.

43542402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168817.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 43542402 is about 6598.6666835051. Note that the first 4 decimals coincide. The cubic root of 43542402 is about 351.8067174507.

Adding to 43542402 its reverse (20424534), we get a palindrome (63966936).

The spelling of 43542402 in words is "forty-three million, five hundred forty-two thousand, four hundred two".