355105990 has 8 divisors (see below), whose sum is σ = 639190800. Its totient is φ = 142042392.

The previous prime is 355105973. The next prime is 355106069. The reversal of 355105990 is 99501553.

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

It is a super-2 number, since 2×355105990² = 252200528267760200, which contains 22 as substring.

It is a congruent number.

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, 17755290 + ... + 17755309.

It is an arithmetic number, because the mean of its divisors is an integer number (79898850).

Almost surely, 2^355105990 is an apocalyptic number.

355105990 is a deficient number, since it is larger than the sum of its proper divisors (284084810).

355105990 is a wasteful number, since it uses less digits than its factorization.

355105990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35510606.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 355105990 is about 18844.2561540646. The cubic root of 355105990 is about 708.1403360084.

The spelling of 355105990 in words is "three hundred fifty-five million, one hundred five thousand, nine hundred ninety".