351775946 has 32 divisors (see below), whose sum is σ = 555886800. Its totient is φ = 166772736.

The previous prime is 351775943. The next prime is 351775967. The reversal of 351775946 is 649577153.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 351750025 + 25921 = 18755^2 + 161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 351775946.

It is not an unprimeable number, because it can be changed into a prime (351775943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007780 + ... + 1008128.

Almost surely, 2^351775946 is an apocalyptic number.

351775946 is a deficient number, since it is larger than the sum of its proper divisors (204110854).

351775946 is a wasteful number, since it uses less digits than its factorization.

351775946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its digits is 793800, while the sum is 47.

The square root of 351775946 is about 18755.6910296582. The cubic root of 351775946 is about 705.9198268093.

The spelling of 351775946 in words is "three hundred fifty-one million, seven hundred seventy-five thousand, nine hundred forty-six".