1622630 has 8 divisors (see below), whose sum is σ = 2920752. Its totient is φ = 649048.

The previous prime is 1622617. The next prime is 1622639. The reversal of 1622630 is 362261.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81122 + ... + 81141.

It is an arithmetic number, because the mean of its divisors is an integer number (365094).

2^1622630 is an apocalyptic number.

1622630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1622630 is a deficient number, since it is larger than the sum of its proper divisors (1298122).

1622630 is a wasteful number, since it uses less digits than its factorization.

1622630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162270.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1622630 is about 1273.8249487273. The cubic root of 1622630 is about 117.5095510570.

Adding to 1622630 its reverse (362261), we get a palindrome (1984891).

The spelling of 1622630 in words is "one million, six hundred twenty-two thousand, six hundred thirty".