353978918 has 8 divisors (see below), whose sum is σ = 531050040. Its totient is φ = 176962240.

The previous prime is 353978909. The next prime is 353978921. The reversal of 353978918 is 819879353.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 353978918.

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, 13238 + ... + 29718.

It is an arithmetic number, because the mean of its divisors is an integer number (66381255).

Almost surely, 2^353978918 is an apocalyptic number.

353978918 is a deficient number, since it is larger than the sum of its proper divisors (177071122).

353978918 is a wasteful number, since it uses less digits than its factorization.

353978918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27222.

The product of its digits is 1632960, while the sum is 53.

The square root of 353978918 is about 18814.3274660563. The cubic root of 353978918 is about 707.3903523885.

The spelling of 353978918 in words is "three hundred fifty-three million, nine hundred seventy-eight thousand, nine hundred eighteen".