2051946 has 64 divisors (see below), whose sum is σ = 5107200. Its totient is φ = 606528.

The previous prime is 2051923. The next prime is 2051947. The reversal of 2051946 is 6491502.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2051947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25935 + ... + 26013.

It is an arithmetic number, because the mean of its divisors is an integer number (79800).

2^2051946 is an apocalyptic number.

2051946 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2051946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2553600).

2051946 is an abundant number, since it is smaller than the sum of its proper divisors (3055254).

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

2051946 is a wasteful number, since it uses less digits than its factorization.

2051946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2051946 is about 1432.4615178077. The cubic root of 2051946 is about 127.0735928275.

The spelling of 2051946 in words is "two million, fifty-one thousand, nine hundred forty-six".