1550422 has 8 divisors (see below), whose sum is σ = 2331000. Its totient is φ = 773424.

The previous prime is 1550413. The next prime is 1550431. The reversal of 1550422 is 2240551.

It is an interprime number because it is at equal distance from previous prime (1550413) and next prime (1550431).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1550422.

It is a congruent number.

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, 954 + ... + 2002.

It is an arithmetic number, because the mean of its divisors is an integer number (291375).

2^1550422 is an apocalyptic number.

1550422 is a deficient number, since it is larger than the sum of its proper divisors (780578).

1550422 is a wasteful number, since it uses less digits than its factorization.

1550422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1550422 is about 1245.1594275433. The cubic root of 1550422 is about 115.7399545322.

Adding to 1550422 its reverse (2240551), we get a palindrome (3790973).

The spelling of 1550422 in words is "one million, five hundred fifty thousand, four hundred twenty-two".