1836940986 has 12 divisors (see below), whose sum is σ = 3980038842. Its totient is φ = 612313656.

The previous prime is 1836940979. The next prime is 1836940993. The reversal of 1836940986 is 6890496381.

It is an interprime number because it is at equal distance from previous prime (1836940979) and next prime (1836940993).

It can be written as a sum of positive squares in only one way, i.e., 1235171025 + 601769961 = 35145^2 + 24531^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51026121 + ... + 51026156.

Almost surely, 2^1836940986 is an apocalyptic number.

1836940986 is an abundant number, since it is smaller than the sum of its proper divisors (2143097856).

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

1836940986 is a wasteful number, since it uses less digits than its factorization.

1836940986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102052285 (or 102052282 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 1836940986 is about 42859.5495309972. The cubic root of 1836940986 is about 1224.7056876741.

The spelling of 1836940986 in words is "one billion, eight hundred thirty-six million, nine hundred forty thousand, nine hundred eighty-six".