2142766 has 8 divisors (see below), whose sum is σ = 3223080. Its totient is φ = 1068408.

The previous prime is 2142761. The next prime is 2142773. The reversal of 2142766 is 6672412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2142766² = 9182892261512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441 + ... + 2116.

It is an arithmetic number, because the mean of its divisors is an integer number (402885).

2^2142766 is an apocalyptic number.

2142766 is a deficient number, since it is larger than the sum of its proper divisors (1080314).

2142766 is a wasteful number, since it uses less digits than its factorization.

2142766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978.

The product of its digits is 4032, while the sum is 28.

The square root of 2142766 is about 1463.8189778794. The cubic root of 2142766 is about 128.9213710685.

The spelling of 2142766 in words is "two million, one hundred forty-two thousand, seven hundred sixty-six".