2158070 has 16 divisors (see below), whose sum is σ = 3943728. Its totient is φ = 850080.

The previous prime is 2158069. The next prime is 2158073. The reversal of 2158070 is 708512.

It is a super-2 number, since 2×2158070² = 9314532249800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941 + ... + 2280.

It is an arithmetic number, because the mean of its divisors is an integer number (246483).

2^2158070 is an apocalyptic number.

2158070 is a deficient number, since it is larger than the sum of its proper divisors (1785658).

2158070 is a wasteful number, since it uses less digits than its factorization.

2158070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 2158070 is about 1469.0370995996. The cubic root of 2158070 is about 129.2275693834.

The spelling of 2158070 in words is "two million, one hundred fifty-eight thousand, seventy".