1939147056 has 360 divisors, whose sum is σ = 7025121792. Its totient is φ = 484876800.

The previous prime is 1939147051. The next prime is 1939147073. The reversal of 1939147056 is 6507419391.

1939147056 is a `hidden beast` number, since 1 + 93 + 91 + 470 + 5 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (1939147051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31789266 + ... + 31789326.

Almost surely, 2^1939147056 is an apocalyptic number.

1939147056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1939147056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3512560896).

1939147056 is an abundant number, since it is smaller than the sum of its proper divisors (5085974736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1939147056 is a wasteful number, since it uses less digits than its factorization.

1939147056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 1939147056 is about 44035.7474786111. The cubic root of 1939147056 is about 1247.0108965191.

The spelling of 1939147056 in words is "one billion, nine hundred thirty-nine million, one hundred forty-seven thousand, fifty-six".