2051970048 has 132 divisors (see below), whose sum is σ = 6038248788. Its totient is φ = 670924800.

The previous prime is 2051970029. The next prime is 2051970049. The reversal of 2051970048 is 8400791502.

It can be written as a sum of positive squares in 2 ways, for example, as 707134464 + 1344835584 = 26592^2 + 36672^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2051969994 and 2051970021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051970049) 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, 486348 + ... + 490548.

It is an arithmetic number, because the mean of its divisors is an integer number (45744309).

Almost surely, 2^2051970048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2051970048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3019124394).

2051970048 is an abundant number, since it is smaller than the sum of its proper divisors (3986278740).

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

2051970048 is a wasteful number, since it uses less digits than its factorization.

2051970048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 2051970048 is about 45298.6760071418. The cubic root of 2051970048 is about 1270.7408924302.

The spelling of 2051970048 in words is "two billion, fifty-one million, nine hundred seventy thousand, forty-eight".