351981445 has 16 divisors (see below), whose sum is σ = 432888192. Its totient is φ = 274599360.

The previous prime is 351981437. The next prime is 351981457. The reversal of 351981445 is 544189153.

It is not a de Polignac number, because 351981445 - 2³ = 351981437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351981398 and 351981407.

It is a congruent number.

It is an unprimeable number.

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, 227344 + ... + 228886.

It is an arithmetic number, because the mean of its divisors is an integer number (27055512).

Almost surely, 2^351981445 is an apocalyptic number.

It is an amenable number.

351981445 is a deficient number, since it is larger than the sum of its proper divisors (80906747).

351981445 is a wasteful number, since it uses less digits than its factorization.

351981445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652.

The product of its digits is 86400, while the sum is 40.

The square root of 351981445 is about 18761.1685403655. The cubic root of 351981445 is about 706.0572604810.

The spelling of 351981445 in words is "three hundred fifty-one million, nine hundred eighty-one thousand, four hundred forty-five".