2070640 has 80 divisors (see below), whose sum is σ = 5687136. Its totient is φ = 691200.

The previous prime is 2070619. The next prime is 2070641. The reversal of 2070640 is 460702.

It is a tau number, because it is divible by the number of its divisors (80).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11350 + ... + 11530.

2^2070640 is an apocalyptic number.

2070640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2070640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2843568).

2070640 is an abundant number, since it is smaller than the sum of its proper divisors (3616496).

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

2070640 is a wasteful number, since it uses less digits than its factorization.

2070640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2070640 is about 1438.9718551799. The cubic root of 2070640 is about 127.4583229153.

The spelling of 2070640 in words is "two million, seventy thousand, six hundred forty".