349644986 has 8 divisors (see below), whose sum is σ = 526758420. Its totient is φ = 174058848.

The previous prime is 349644979. The next prime is 349645003. The reversal of 349644986 is 689446943.

It can be written as a sum of positive squares in 2 ways, for example, as 312617761 + 37027225 = 17681^2 + 6085^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381251 + ... + 382166.

Almost surely, 2^349644986 is an apocalyptic number.

349644986 is a deficient number, since it is larger than the sum of its proper divisors (177113434).

349644986 is a wasteful number, since it uses less digits than its factorization.

349644986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763648.

The product of its digits is 4478976, while the sum is 53.

The square root of 349644986 is about 18698.7963783769. The cubic root of 349644986 is about 704.4915173875.

The spelling of 349644986 in words is "three hundred forty-nine million, six hundred forty-four thousand, nine hundred eighty-six".