2142746 has 4 divisors (see below), whose sum is σ = 3214122. Its totient is φ = 1071372.

The previous prime is 2142743. The next prime is 2142761. The reversal of 2142746 is 6472412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 83521 = 1435^2 + 289^2 .

It is not an unprimeable number, because it can be changed into a prime (2142743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535685 + ... + 535688.

2^2142746 is an apocalyptic number.

2142746 is a deficient number, since it is larger than the sum of its proper divisors (1071376).

2142746 is a wasteful number, since it uses less digits than its factorization.

2142746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071375.

The product of its digits is 2688, while the sum is 26.

The square root of 2142746 is about 1463.8121464177. The cubic root of 2142746 is about 128.9209699615.

The spelling of 2142746 in words is "two million, one hundred forty-two thousand, seven hundred forty-six".