19950984 has 24 divisors (see below), whose sum is σ = 54034110. Its totient is φ = 6650304.

The previous prime is 19950977. The next prime is 19951021. The reversal of 19950984 is 48905991.

It can be written as a sum of positive squares in only one way, i.e., 19554084 + 396900 = 4422^2 + 630^2 .

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

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, 138477 + ... + 138620.

Almost surely, 2^19950984 is an apocalyptic number.

It is an amenable number.

19950984 is an abundant number, since it is smaller than the sum of its proper divisors (34083126).

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

19950984 is a wasteful number, since it uses less digits than its factorization.

19950984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277109 (or 277102 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 19950984 is about 4466.6524377883. The cubic root of 19950984 is about 271.2198304345.

The spelling of 19950984 in words is "nineteen million, nine hundred fifty thousand, nine hundred eighty-four".