1622331 has 6 divisors (see below), whose sum is σ = 2343380. Its totient is φ = 1081548.

The previous prime is 1622311. The next prime is 1622333. The reversal of 1622331 is 1332261.

It is not a de Polignac number, because 1622331 - 2⁹ = 1621819 is a prime.

It is a super-2 number, since 2×1622331² = 5263915747122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90121 + ... + 90138.

2^1622331 is an apocalyptic number.

1622331 is a deficient number, since it is larger than the sum of its proper divisors (721049).

1622331 is a wasteful number, since it uses less digits than its factorization.

1622331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180265 (or 180262 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 1622331 is about 1273.7075802554. The cubic root of 1622331 is about 117.5023328343.

Adding to 1622331 its reverse (1332261), we get a palindrome (2954592).

It can be divided in two parts, 1622 and 331, that added together give a triangular number (1953 = T₆₂).

The spelling of 1622331 in words is "one million, six hundred twenty-two thousand, three hundred thirty-one".