1906018056 has 24 divisors (see below), whose sum is σ = 5162132430. Its totient is φ = 635339328.

The previous prime is 1906018039. The next prime is 1906018057. The reversal of 1906018056 is 6508106091.

It can be written as a sum of positive squares in only one way, i.e., 1905322500 + 695556 = 43650^2 + 834^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1906018056.

It is not an unprimeable number, because it can be changed into a prime (1906018057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13236165 + ... + 13236308.

Almost surely, 2^1906018056 is an apocalyptic number.

It is an amenable number.

1906018056 is an abundant number, since it is smaller than the sum of its proper divisors (3256114374).

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

1906018056 is a wasteful number, since it uses less digits than its factorization.

1906018056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26472485 (or 26472478 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1906018056 is about 43657.9666956674. The cubic root of 1906018056 is about 1239.8686246525.

The spelling of 1906018056 in words is "one billion, nine hundred six million, eighteen thousand, fifty-six".