346640453 has 4 divisors (see below), whose sum is σ = 350816928. Its totient is φ = 342463980.

The previous prime is 346640449. The next prime is 346640467. The reversal of 346640453 is 354046643.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 346640453 - 2² = 346640449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346640443) 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 3 ways as a sum of consecutive naturals, for example, 2088113 + ... + 2088278.

It is an arithmetic number, because the mean of its divisors is an integer number (87704232).

Almost surely, 2^346640453 is an apocalyptic number.

It is an amenable number.

346640453 is a deficient number, since it is larger than the sum of its proper divisors (4176475).

346640453 is an equidigital number, since it uses as much as digits as its factorization.

346640453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176474.

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 346640453 is about 18618.2827618446. The cubic root of 346640453 is about 702.4677884446.

The spelling of 346640453 in words is "three hundred forty-six million, six hundred forty thousand, four hundred fifty-three".