1936481644 has 6 divisors (see below), whose sum is σ = 3388842884. Its totient is φ = 968240820.

The previous prime is 1936481633. The next prime is 1936481647. The reversal of 1936481644 is 4461846391.

It is a super-2 number, since 2×1936481644² = 7499922315097885472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1936481594 and 1936481603.

It is not an unprimeable number, because it can be changed into a prime (1936481647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242060202 + ... + 242060209.

Almost surely, 2^1936481644 is an apocalyptic number.

It is an amenable number.

1936481644 is a deficient number, since it is larger than the sum of its proper divisors (1452361240).

1936481644 is a wasteful number, since it uses less digits than its factorization.

1936481644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484120415 (or 484120413 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 1936481644 is about 44005.4728869035. The cubic root of 1936481644 is about 1246.4392840592.

The spelling of 1936481644 in words is "one billion, nine hundred thirty-six million, four hundred eighty-one thousand, six hundred forty-four".