345643354 has 24 divisors (see below), whose sum is σ = 638592660. Its totient is φ = 139418496.

The previous prime is 345643351. The next prime is 345643357. The reversal of 345643354 is 453346543.

It is an interprime number because it is at equal distance from previous prime (345643351) and next prime (345643357).

It can be written as a sum of positive squares in 2 ways, for example, as 322382025 + 23261329 = 17955^2 + 4823^2 .

It is not an unprimeable number, because it can be changed into a prime (345643351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102069 + ... + 105400.

Almost surely, 2^345643354 is an apocalyptic number.

345643354 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

345643354 is a deficient number, since it is larger than the sum of its proper divisors (292949306).

345643354 is a wasteful number, since it uses less digits than its factorization.

345643354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207502 (or 207495 counting only the distinct ones).

The product of its digits is 259200, while the sum is 37.

The square root of 345643354 is about 18591.4860621737. The cubic root of 345643354 is about 701.7936003573.

Adding to 345643354 its reverse (453346543), we get a palindrome (798989897).

The spelling of 345643354 in words is "three hundred forty-five million, six hundred forty-three thousand, three hundred fifty-four".