2166342 has 32 divisors (see below), whose sum is σ = 4715520. Its totient is φ = 660960.

The previous prime is 2166319. The next prime is 2166403. The reversal of 2166342 is 2436612.

2166342 = T₄₆₈ + T₄₆₉ + ... + T₄₈₆.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 6⁵ + 6⁶ + 3⁸ + 4 + 2²¹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3228 + ... + 3840.

It is an arithmetic number, because the mean of its divisors is an integer number (147360).

2^2166342 is an apocalyptic number.

2166342 is an abundant number, since it is smaller than the sum of its proper divisors (2549178).

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

2166342 is a wasteful number, since it uses less digits than its factorization.

2166342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its digits is 1728, while the sum is 24.

The square root of 2166342 is about 1471.8498564731. The cubic root of 2166342 is about 129.3924709772.

The spelling of 2166342 in words is "two million, one hundred sixty-six thousand, three hundred forty-two".