342400453 has 2 divisors, whose sum is σ = 342400454. Its totient is φ = 342400452.

The previous prime is 342400439. The next prime is 342400483. The reversal of 342400453 is 354004243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340845444 + 1555009 = 18462^2 + 1247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342400453 is a prime.

It is a super-3 number, since 3×342400453³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342400433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171200226 + 171200227.

It is an arithmetic number, because the mean of its divisors is an integer number (171200227).

Almost surely, 2^342400453 is an apocalyptic number.

It is an amenable number.

342400453 is a deficient number, since it is larger than the sum of its proper divisors (1).

342400453 is an equidigital number, since it uses as much as digits as its factorization.

342400453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 342400453 is about 18504.0658505097. The cubic root of 342400453 is about 699.5919070301.

Adding to 342400453 its reverse (354004243), we get a palindrome (696404696).

The spelling of 342400453 in words is "three hundred forty-two million, four hundred thousand, four hundred fifty-three".