1985914332 has 18 divisors (see below), whose sum is σ = 5019950208. Its totient is φ = 661971432.

The previous prime is 1985914321. The next prime is 1985914363. The reversal of 1985914332 is 2334195891.

It is a happy number.

1985914332 is a `hidden beast` number, since 19 + 8 + 591 + 43 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27582108 + ... + 27582179.

Almost surely, 2^1985914332 is an apocalyptic number.

1985914332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1985914332 is an abundant number, since it is smaller than the sum of its proper divisors (3034035876).

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

1985914332 is a wasteful number, since it uses less digits than its factorization.

1985914332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55164297 (or 55164292 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 1985914332 is about 44563.5987325979. The cubic root of 1985914332 is about 1256.9562738856.

It can be divided in two parts, 19859 and 14332, that added together give a triangular number (34191 = T₂₆₁).

The spelling of 1985914332 in words is "one billion, nine hundred eighty-five million, nine hundred fourteen thousand, three hundred thirty-two".