2138484 has 12 divisors (see below), whose sum is σ = 4989824. Its totient is φ = 712824.

The previous prime is 2138483. The next prime is 2138491. The reversal of 2138484 is 4848312.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2138484² = 9146227636512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 3⁵ + 8⁵ + 4³ + 8⁷ + 4³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89092 + ... + 89115.

2^2138484 is an apocalyptic number.

It is an amenable number.

2138484 is an abundant number, since it is smaller than the sum of its proper divisors (2851340).

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

2138484 is a wasteful number, since it uses less digits than its factorization.

2138484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178214 (or 178212 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 2138484 is about 1462.3556339003. The cubic root of 2138484 is about 128.8354370555.

The spelling of 2138484 in words is "two million, one hundred thirty-eight thousand, four hundred eighty-four".