2139288 has 16 divisors (see below), whose sum is σ = 5348280. Its totient is φ = 713088.

The previous prime is 2139283. The next prime is 2139307. The reversal of 2139288 is 8829312.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139283) 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 3 ways as a sum of consecutive naturals, for example, 44545 + ... + 44592.

2^2139288 is an apocalyptic number.

It is an amenable number.

2139288 is an abundant number, since it is smaller than the sum of its proper divisors (3208992).

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

2139288 is a wasteful number, since it uses less digits than its factorization.

2139288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89146 (or 89142 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 2139288 is about 1462.6305069976. The cubic root of 2139288 is about 128.8515810019.

The spelling of 2139288 in words is "two million, one hundred thirty-nine thousand, two hundred eighty-eight".