2139774 has 32 divisors (see below), whose sum is σ = 5268480. Its totient is φ = 564192.

The previous prime is 2139757. The next prime is 2139811. The reversal of 2139774 is 4779312.

2139774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414 + ... + 2505.

It is an arithmetic number, because the mean of its divisors is an integer number (164640).

2^2139774 is an apocalyptic number.

2139774 is an abundant number, since it is smaller than the sum of its proper divisors (3128706).

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

2139774 is a wasteful number, since it uses less digits than its factorization.

2139774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944.

The product of its digits is 10584, while the sum is 33.

The square root of 2139774 is about 1462.7966365835. The cubic root of 2139774 is about 128.8613376946.

The spelling of 2139774 in words is "two million, one hundred thirty-nine thousand, seven hundred seventy-four".