1940047388 has 24 divisors (see below), whose sum is σ = 3499759872. Its totient is φ = 940502384.

The previous prime is 1940047379. The next prime is 1940047391. The reversal of 1940047388 is 8837400491.

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, 28106 + ... + 68337.

It is an arithmetic number, because the mean of its divisors is an integer number (145823328).

Almost surely, 2^1940047388 is an apocalyptic number.

It is an amenable number.

1940047388 is a deficient number, since it is larger than the sum of its proper divisors (1559712484).

1940047388 is a wasteful number, since it uses less digits than its factorization.

1940047388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96601 (or 96599 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 1940047388 is about 44045.9690323644. The cubic root of 1940047388 is about 1247.2038593819.

The spelling of 1940047388 in words is "one billion, nine hundred forty million, forty-seven thousand, three hundred eighty-eight".