1890107056 has 20 divisors (see below), whose sum is σ = 3877499592. Its totient is φ = 889462016.

The previous prime is 1890107029. The next prime is 1890107059. The reversal of 1890107056 is 6507010981.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1890107059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3474190 + ... + 3474733.

Almost surely, 2^1890107056 is an apocalyptic number.

1890107056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1890107056 is an abundant number, since it is smaller than the sum of its proper divisors (1987392536).

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

1890107056 is a wasteful number, since it uses less digits than its factorization.

1890107056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948948 (or 6948942 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1890107056 is about 43475.3614821085. The cubic root of 1890107056 is about 1236.4089338573.

The spelling of 1890107056 in words is "one billion, eight hundred ninety million, one hundred seven thousand, fifty-six".