1944972694 has 16 divisors (see below), whose sum is σ = 3397150368. Its totient is φ = 817831872.

The previous prime is 1944972629. The next prime is 1944972707. The reversal of 1944972694 is 4962794491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309887 + ... + 1311370.

It is an arithmetic number, because the mean of its divisors is an integer number (212321898).

Almost surely, 2^1944972694 is an apocalyptic number.

1944972694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1944972694 is a deficient number, since it is larger than the sum of its proper divisors (1452177674).

1944972694 is a wasteful number, since it uses less digits than its factorization.

1944972694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621319.

The product of its digits is 3919104, while the sum is 55.

The square root of 1944972694 is about 44101.8445645984. The cubic root of 1944972694 is about 1248.2584160218.

The spelling of 1944972694 in words is "one billion, nine hundred forty-four million, nine hundred seventy-two thousand, six hundred ninety-four".