1945997302 has 4 divisors (see below), whose sum is σ = 2918995956. Its totient is φ = 972998650.

The previous prime is 1945997299. The next prime is 1945997341. The reversal of 1945997302 is 2037995491.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486499324 + ... + 486499327.

It is an arithmetic number, because the mean of its divisors is an integer number (729748989).

Almost surely, 2^1945997302 is an apocalyptic number.

1945997302 is a deficient number, since it is larger than the sum of its proper divisors (972998654).

1945997302 is an equidigital number, since it uses as much as digits as its factorization.

1945997302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972998653.

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 1945997302 is about 44113.4594200002. The cubic root of 1945997302 is about 1248.4775709473.

The spelling of 1945997302 in words is "one billion, nine hundred forty-five million, nine hundred ninety-seven thousand, three hundred two".