348999645 has 16 divisors (see below), whose sum is σ = 565129152. Its totient is φ = 183889920.

The previous prime is 348999617. The next prime is 348999661. The reversal of 348999645 is 546999843.

It is a happy number.

It is not a de Polignac number, because 348999645 - 2⁷ = 348999517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138916 + ... + 141405.

It is an arithmetic number, because the mean of its divisors is an integer number (35320572).

Almost surely, 2^348999645 is an apocalyptic number.

It is an amenable number.

348999645 is a deficient number, since it is larger than the sum of its proper divisors (216129507).

348999645 is a wasteful number, since it uses less digits than its factorization.

348999645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280412.

The product of its digits is 8398080, while the sum is 57.

The square root of 348999645 is about 18681.5321909098. The cubic root of 348999645 is about 704.0578229505.

It can be divided in two parts, 34899 and 9645, that added together give a palindrome (44544).

The spelling of 348999645 in words is "three hundred forty-eight million, nine hundred ninety-nine thousand, six hundred forty-five".