2139412 has 12 divisors (see below), whose sum is σ = 4084416. Its totient is φ = 972440.

The previous prime is 2139409. The next prime is 2139427. The reversal of 2139412 is 2149312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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, 24268 + ... + 24355.

It is an arithmetic number, because the mean of its divisors is an integer number (340368).

2^2139412 is an apocalyptic number.

2139412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2139412 is a deficient number, since it is larger than the sum of its proper divisors (1945004).

2139412 is a wasteful number, since it uses less digits than its factorization.

2139412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48638 (or 48636 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 2139412 is about 1462.6728957631. The cubic root of 2139412 is about 128.8540705042.

The spelling of 2139412 in words is "two million, one hundred thirty-nine thousand, four hundred twelve".