2139346 has 16 divisors (see below), whose sum is σ = 3576960. Its totient is φ = 951280.

The previous prime is 2139337. The next prime is 2139353. The reversal of 2139346 is 6439312.

2139346 is a nontrivial binomial coefficient, being equal to C(2069, 2).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 2068.

It is an arithmetic number, because the mean of its divisors is an integer number (223560).

2^2139346 is an apocalyptic number.

2139346 is the 2068-th triangular number.

2139346 is the 690-th centered nonagonal number.

2139346 is a deficient number, since it is larger than the sum of its proper divisors (1437614).

2139346 is a wasteful number, since it uses less digits than its factorization.

2139346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its digits is 3888, while the sum is 28.

The square root of 2139346 is about 1462.6503341537. The cubic root of 2139346 is about 128.8527454585.

It can be divided in two parts, 2139 and 346, that added together give a triangular number (2485 = T₇₀).

The spelling of 2139346 in words is "two million, one hundred thirty-nine thousand, three hundred forty-six".