2021946 has 32 divisors (see below), whose sum is σ = 4390848. Its totient is φ = 618240.

The previous prime is 2021933. The next prime is 2021959. The reversal of 2021946 is 6491202.

It is an interprime number because it is at equal distance from previous prime (2021933) and next prime (2021959).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4156 + ... + 4616.

It is an arithmetic number, because the mean of its divisors is an integer number (137214).

2^2021946 is an apocalyptic number.

2021946 is an abundant number, since it is smaller than the sum of its proper divisors (2368902).

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

2021946 is a wasteful number, since it uses less digits than its factorization.

2021946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2021946 is about 1421.9514759653. The cubic root of 2021946 is about 126.4512667246.

The spelling of 2021946 in words is "two million, twenty-one thousand, nine hundred forty-six".