2638149 has 8 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 1754976.

The previous prime is 2638087. The next prime is 2638177. The reversal of 2638149 is 9418362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2638149 - 2¹⁶ = 2572613 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6³ + 3³ + 8⁷ + 1 + 4⁷ + 9² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1884 + ... + 2970.

It is an arithmetic number, because the mean of its divisors is an integer number (440640).

2^2638149 is an apocalyptic number.

It is an amenable number.

2638149 is a deficient number, since it is larger than the sum of its proper divisors (886971).

2638149 is a wasteful number, since it uses less digits than its factorization.

2638149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899.

The product of its digits is 10368, while the sum is 33.

The square root of 2638149 is about 1624.2379751748. The cubic root of 2638149 is about 138.1761560547.

The spelling of 2638149 in words is "two million, six hundred thirty-eight thousand, one hundred forty-nine".