2142770 has 24 divisors (see below), whose sum is σ = 4487724. Its totient is φ = 734496.

The previous prime is 2142761. The next prime is 2142773. The reversal of 2142770 is 772412.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 2401 = 1463^2 + 49^2 .

It is not an unprimeable number, because it can be changed into a prime (2142773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1697 + ... + 2676.

2^2142770 is an apocalyptic number.

2142770 is an abundant number, since it is smaller than the sum of its proper divisors (2344954).

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

2142770 is a wasteful number, since it uses less digits than its factorization.

2142770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394 (or 4387 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 2142770 is about 1463.8203441680. The cubic root of 2142770 is about 128.9214512897.

The spelling of 2142770 in words is "two million, one hundred forty-two thousand, seven hundred seventy".