373389649 has 4 divisors (see below), whose sum is σ = 395353764. Its totient is φ = 351425536.

The previous prime is 373389647. The next prime is 373389689. The reversal of 373389649 is 946983373.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161163025 + 212226624 = 12695^2 + 14568^2 .

It is a cyclic number.

It is not a de Polignac number, because 373389649 - 2¹ = 373389647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 373389596 and 373389605.

It is not an unprimeable number, because it can be changed into a prime (373389641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10982032 + ... + 10982065.

It is an arithmetic number, because the mean of its divisors is an integer number (98838441).

Almost surely, 2^373389649 is an apocalyptic number.

It is an amenable number.

373389649 is a deficient number, since it is larger than the sum of its proper divisors (21964115).

373389649 is a wasteful number, since it uses less digits than its factorization.

373389649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21964114.

The product of its digits is 2939328, while the sum is 52.

The square root of 373389649 is about 19323.2929129587. The cubic root of 373389649 is about 720.0910693705.

The spelling of 373389649 in words is "three hundred seventy-three million, three hundred eighty-nine thousand, six hundred forty-nine".