342400443 has 32 divisors (see below), whose sum is σ = 582438912. Its totient is φ = 173728800.

The previous prime is 342400439. The next prime is 342400453. The reversal of 342400443 is 344004243.

It is a happy number.

It is not a de Polignac number, because 342400443 - 2² = 342400439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342400433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7303 + ... + 27168.

It is an arithmetic number, because the mean of its divisors is an integer number (18201216).

Almost surely, 2^342400443 is an apocalyptic number.

342400443 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

342400443 is a deficient number, since it is larger than the sum of its proper divisors (240038469).

342400443 is a wasteful number, since it uses less digits than its factorization.

342400443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34535.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 342400443 is about 18504.0655802988. The cubic root of 342400443 is about 699.5919002194.

Adding to 342400443 its reverse (344004243), we get a palindrome (686404686).

The spelling of 342400443 in words is "three hundred forty-two million, four hundred thousand, four hundred forty-three".