345549639 has 8 divisors (see below), whose sum is σ = 461454192. Its totient is φ = 230005760.

The previous prime is 345549629. The next prime is 345549641. The reversal of 345549639 is 936945543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345549639 - 2⁸ = 345549383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345549629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87924 + ... + 91769.

It is an arithmetic number, because the mean of its divisors is an integer number (57681774).

Almost surely, 2^345549639 is an apocalyptic number.

345549639 is a deficient number, since it is larger than the sum of its proper divisors (115904553).

345549639 is a wasteful number, since it uses less digits than its factorization.

345549639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180337.

The product of its digits is 1749600, while the sum is 48.

The square root of 345549639 is about 18588.9655172094. The cubic root of 345549639 is about 701.7301683723.

The spelling of 345549639 in words is "three hundred forty-five million, five hundred forty-nine thousand, six hundred thirty-nine".