2070137840 has 80 divisors (see below), whose sum is σ = 4986347520. Its totient is φ = 798439680.

The previous prime is 2070137813. The next prime is 2070137843. The reversal of 2070137840 is 487310702.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2070137797 and 2070137806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070137843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760001 + ... + 762719.

It is an arithmetic number, because the mean of its divisors is an integer number (62329344).

Almost surely, 2^2070137840 is an apocalyptic number.

2070137840 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 2070137840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2493173760).

2070137840 is an abundant number, since it is smaller than the sum of its proper divisors (2916209680).

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

2070137840 is a wasteful number, since it uses less digits than its factorization.

2070137840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070 (or 3064 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 2070137840 is about 45498.7674558334. The cubic root of 2070137840 is about 1274.4801858977.

The spelling of 2070137840 in words is "two billion, seventy million, one hundred thirty-seven thousand, eight hundred forty".