2170742 has 16 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 910248.

The previous prime is 2170741. The next prime is 2170757. The reversal of 2170742 is 2470712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992 + ... + 2307.

It is an arithmetic number, because the mean of its divisors is an integer number (237600).

2^2170742 is an apocalyptic number.

2170742 is a deficient number, since it is larger than the sum of its proper divisors (1630858).

2170742 is a wasteful number, since it uses less digits than its factorization.

2170742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355.

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

The square root of 2170742 is about 1473.3438159506. The cubic root of 2170742 is about 129.4800136118.

The spelling of 2170742 in words is "two million, one hundred seventy thousand, seven hundred forty-two".