2639484 has 36 divisors (see below), whose sum is σ = 6728904. Its totient is φ = 872352.

The previous prime is 2639477. The next prime is 2639489. The reversal of 2639484 is 4849362.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a d-powerful number, because it can be written as 2¹⁷ + 6⁷ + 3⁵ + 9 + 4⁸ + 8⁷ + 4⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5419 + ... + 5885.

It is an arithmetic number, because the mean of its divisors is an integer number (186914).

2^2639484 is an apocalyptic number.

It is an amenable number.

2639484 is an abundant number, since it is smaller than the sum of its proper divisors (4089420).

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

2639484 is a wasteful number, since it uses less digits than its factorization.

2639484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 629 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 2639484 is about 1624.6488851441. The cubic root of 2639484 is about 138.1994595226.

The spelling of 2639484 in words is "two million, six hundred thirty-nine thousand, four hundred eighty-four".