342400431 has 4 divisors (see below), whose sum is σ = 456533912. Its totient is φ = 228266952.

The previous prime is 342400427. The next prime is 342400433. The reversal of 342400431 is 134004243.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 342400431 - 2² = 342400427 is a prime.

It is a super-2 number, since 2×342400431² = 234476110297971522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342400398 and 342400407.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 57066736 + ... + 57066741.

It is an arithmetic number, because the mean of its divisors is an integer number (114133478).

Almost surely, 2^342400431 is an apocalyptic number.

342400431 is a deficient number, since it is larger than the sum of its proper divisors (114133481).

342400431 is a wasteful number, since it uses less digits than its factorization.

342400431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114133480.

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

The square root of 342400431 is about 18504.0652560458. The cubic root of 342400431 is about 699.5918920466.

Adding to 342400431 its reverse (134004243), we get a palindrome (476404674).

The spelling of 342400431 in words is "three hundred forty-two million, four hundred thousand, four hundred thirty-one".