1922642 has 8 divisors (see below), whose sum is σ = 2983500. Its totient is φ = 928144.

The previous prime is 1922621. The next prime is 1922663. The reversal of 1922642 is 2462291.

It is an interprime number because it is at equal distance from previous prime (1922621) and next prime (1922663).

It can be written as a sum of positive squares in 2 ways, for example, as 1661521 + 261121 = 1289^2 + 511^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16517 + ... + 16632.

2^1922642 is an apocalyptic number.

1922642 is a deficient number, since it is larger than the sum of its proper divisors (1060858).

1922642 is a wasteful number, since it uses less digits than its factorization.

1922642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33180.

The product of its digits is 1728, while the sum is 26.

The square root of 1922642 is about 1386.5936679503. The cubic root of 1922642 is about 124.3462831945.

The spelling of 1922642 in words is "one million, nine hundred twenty-two thousand, six hundred forty-two".