1606621422 has 32 divisors (see below), whose sum is σ = 3681902592. Its totient is φ = 457831584.

The previous prime is 1606621411. The next prime is 1606621453. The reversal of 1606621422 is 2241266061.

It is a self number, because there is not a number n which added to its sum of digits gives 1606621422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33853 + ... + 66024.

It is an arithmetic number, because the mean of its divisors is an integer number (115059456).

Almost surely, 2^1606621422 is an apocalyptic number.

1606621422 is an abundant number, since it is smaller than the sum of its proper divisors (2075281170).

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

1606621422 is a wasteful number, since it uses less digits than its factorization.

1606621422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100272.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1606621422 is about 40082.6823204236. The cubic root of 1606621422 is about 1171.2183043368.

Adding to 1606621422 its reverse (2241266061), we get a palindrome (3847887483).

The spelling of 1606621422 in words is "one billion, six hundred six million, six hundred twenty-one thousand, four hundred twenty-two".