1021942 has 8 divisors (see below), whose sum is σ = 1537416. Its totient is φ = 509472.

The previous prime is 1021919. The next prime is 1021961. The reversal of 1021942 is 2491201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (192177).

2^1021942 is an apocalyptic number.

1021942 is a deficient number, since it is larger than the sum of its proper divisors (515474).

1021942 is an equidigital number, since it uses as much as digits as its factorization.

1021942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1021942 is about 1010.9114699122. The cubic root of 1021942 is about 100.7261148115.

It can be divided in two parts, 10 and 21942, that added together give a cube (21952 = 28³).

The spelling of 1021942 in words is "one million, twenty-one thousand, nine hundred forty-two".