340422453 has 24 divisors (see below), whose sum is σ = 586671360. Its totient is φ = 194526360.

The previous prime is 340422451. The next prime is 340422461. The reversal of 340422453 is 354224043.

It is not a de Polignac number, because 340422453 - 2¹ = 340422451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340422451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127333 + ... + 129978.

It is an arithmetic number, because the mean of its divisors is an integer number (24444640).

Almost surely, 2^340422453 is an apocalyptic number.

It is an amenable number.

340422453 is a deficient number, since it is larger than the sum of its proper divisors (246248907).

340422453 is a wasteful number, since it uses less digits than its factorization.

340422453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257334 (or 257321 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 340422453 is about 18450.5407237837. The cubic root of 340422453 is about 698.2421560541.

Adding to 340422453 its reverse (354224043), we get a palindrome (694646496).

The spelling of 340422453 in words is "three hundred forty million, four hundred twenty-two thousand, four hundred fifty-three".