345448490 has 32 divisors (see below), whose sum is σ = 639709056. Its totient is φ = 134256960.

The previous prime is 345448487. The next prime is 345448511. The reversal of 345448490 is 94844543.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 47219 + ... + 54041.

It is an arithmetic number, because the mean of its divisors is an integer number (19990908).

Almost surely, 2^345448490 is an apocalyptic number.

345448490 is a deficient number, since it is larger than the sum of its proper divisors (294260566).

345448490 is a wasteful number, since it uses less digits than its factorization.

345448490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6974.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 345448490 is about 18586.2446448980. The cubic root of 345448490 is about 701.6616917353.

It can be divided in two parts, 34544 and 8490, that added together give a palindrome (43034).

The spelling of 345448490 in words is "three hundred forty-five million, four hundred forty-eight thousand, four hundred ninety".