2142946 has 8 divisors (see below), whose sum is σ = 3461724. Its totient is φ = 989040.

The previous prime is 2142941. The next prime is 2142967. The reversal of 2142946 is 6492412.

It can be written as a sum of positive squares in 2 ways, for example, as 2117025 + 25921 = 1455^2 + 161^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2142941) 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, 41185 + ... + 41236.

2^2142946 is an apocalyptic number.

2142946 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2142946 is a deficient number, since it is larger than the sum of its proper divisors (1318778).

2142946 is a wasteful number, since it uses less digits than its factorization.

2142946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82436.

The product of its digits is 3456, while the sum is 28.

The square root of 2142946 is about 1463.8804596004. The cubic root of 2142946 is about 128.9249809194.

It can be divided in two parts, 214 and 2946, that added together give a triangular number (3160 = T₇₉).

The spelling of 2142946 in words is "two million, one hundred forty-two thousand, nine hundred forty-six".