2638984 has 8 divisors (see below), whose sum is σ = 4948110. Its totient is φ = 1319488.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2638984 is 4898362.

It can be written as a sum of positive squares in only one way, i.e., 2630884 + 8100 = 1622^2 + 90^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164929 + ... + 164944.

2^2638984 is an apocalyptic number.

It is an amenable number.

2638984 is a deficient number, since it is larger than the sum of its proper divisors (2309126).

2638984 is a wasteful number, since it uses less digits than its factorization.

2638984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329879 (or 329875 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 2638984 is about 1624.4949984534. The cubic root of 2638984 is about 138.1907325526.

The spelling of 2638984 in words is "two million, six hundred thirty-eight thousand, nine hundred eighty-four".