1906422 has 32 divisors (see below), whose sum is σ = 4588800. Its totient is φ = 515808.

The previous prime is 1906417. The next prime is 1906439. The reversal of 1906422 is 2246091.

It is a junction number, because it is equal to n+sod(n) for n = 1906392 and 1906401.

It is a congruent number.

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, 397 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (143400).

2^1906422 is an apocalyptic number.

1906422 is an abundant number, since it is smaller than the sum of its proper divisors (2682378).

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

1906422 is a wasteful number, since it uses less digits than its factorization.

1906422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420.

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

The square root of 1906422 is about 1380.7324143367. The cubic root of 1906422 is about 123.9956207264.

The spelling of 1906422 in words is "one million, nine hundred six thousand, four hundred twenty-two".