353990845 has 16 divisors (see below), whose sum is σ = 458386992. Its totient is φ = 260881920.

The previous prime is 353990831. The next prime is 353990851. The reversal of 353990845 is 548099353.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 964324 + 353026521 = 982^2 + 18789^2 .

It is not a de Polignac number, because 353990845 - 2⁷ = 353990717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 353990795 and 353990804.

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, 28639 + ... + 39091.

It is an arithmetic number, because the mean of its divisors is an integer number (28649187).

Almost surely, 2^353990845 is an apocalyptic number.

It is an amenable number.

353990845 is a deficient number, since it is larger than the sum of its proper divisors (104396147).

353990845 is a wasteful number, since it uses less digits than its factorization.

353990845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10992.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 353990845 is about 18814.6444292737. The cubic root of 353990845 is about 707.3982972590.

The spelling of 353990845 in words is "three hundred fifty-three million, nine hundred ninety thousand, eight hundred forty-five".