2138832 has 40 divisors (see below), whose sum is σ = 6140480. Its totient is φ = 712800.

The previous prime is 2138831. The next prime is 2138833. The reversal of 2138832 is 2388312.

It is an interprime number because it is at equal distance from previous prime (2138831) and next prime (2138833).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2138796 and 2138805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138831) 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, 2044 + ... + 2907.

It is an arithmetic number, because the mean of its divisors is an integer number (153512).

2^2138832 is an apocalyptic number.

It is an amenable number.

2138832 is an abundant number, since it is smaller than the sum of its proper divisors (4001648).

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

2138832 is a wasteful number, since it uses less digits than its factorization.

2138832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968 (or 4956 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2138832 is about 1462.4746151643. The cubic root of 2138832 is about 128.8424252304.

It can be divided in two parts, 213 and 8832, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 2138832 in words is "two million, one hundred thirty-eight thousand, eight hundred thirty-two".