1944682634 has 4 divisors (see below), whose sum is σ = 2917023954. Its totient is φ = 972341316.

The previous prime is 1944682633. The next prime is 1944682651. The reversal of 1944682634 is 4362864491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4362864491 = 73 ⋅59765267.

It can be written as a sum of positive squares in only one way, i.e., 1289169025 + 655513609 = 35905^2 + 25603^2 .

It is not an unprimeable number, because it can be changed into a prime (1944682631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486170657 + ... + 486170660.

Almost surely, 2^1944682634 is an apocalyptic number.

1944682634 is a deficient number, since it is larger than the sum of its proper divisors (972341320).

1944682634 is an equidigital number, since it uses as much as digits as its factorization.

1944682634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972341319.

The product of its digits is 995328, while the sum is 47.

The square root of 1944682634 is about 44098.5559173994. Note that the first 3 decimals coincide. The cubic root of 1944682634 is about 1248.1963606799.

The spelling of 1944682634 in words is "one billion, nine hundred forty-four million, six hundred eighty-two thousand, six hundred thirty-four".