1962021 has 24 divisors (see below), whose sum is σ = 2907904. Its totient is φ = 1175040.

The previous prime is 1962013. The next prime is 1962041. The reversal of 1962021 is 1202691.

It is not a de Polignac number, because 1962021 - 2³ = 1962013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1962001) 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 23 ways as a sum of consecutive naturals, for example, 26841 + ... + 26913.

2^1962021 is an apocalyptic number.

It is an amenable number.

1962021 is a deficient number, since it is larger than the sum of its proper divisors (945883).

1962021 is a wasteful number, since it uses less digits than its factorization.

1962021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1962021 is about 1400.7215997478. The cubic root of 1962021 is about 125.1894939246.

The spelling of 1962021 in words is "one million, nine hundred sixty-two thousand, twenty-one".