1973256338 has 16 divisors (see below), whose sum is σ = 3079664280. Its totient is φ = 947095296.

The previous prime is 1973256301. The next prime is 1973256377. The reversal of 1973256338 is 8336523791.

It can be written as a sum of positive squares in 4 ways, for example, as 1963996489 + 9259849 = 44317^2 + 3043^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1973256292 and 1973256301.

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, 88295 + ... + 108362.

Almost surely, 2^1973256338 is an apocalyptic number.

1973256338 is a deficient number, since it is larger than the sum of its proper divisors (1106407942).

1973256338 is a wasteful number, since it uses less digits than its factorization.

1973256338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196861.

The product of its digits is 816480, while the sum is 47.

The square root of 1973256338 is about 44421.3500245096. The cubic root of 1973256338 is about 1254.2800138987.

The spelling of 1973256338 in words is "one billion, nine hundred seventy-three million, two hundred fifty-six thousand, three hundred thirty-eight".