1609220214 has 48 divisors (see below), whose sum is σ = 4029536160. Its totient is φ = 454608000.

The previous prime is 1609220209. The next prime is 1609220251. The reversal of 1609220214 is 4120229061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60537 + ... + 82964.

It is an arithmetic number, because the mean of its divisors is an integer number (83948670).

Almost surely, 2^1609220214 is an apocalyptic number.

1609220214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1609220214 is an abundant number, since it is smaller than the sum of its proper divisors (2420315946).

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

1609220214 is a wasteful number, since it uses less digits than its factorization.

1609220214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143605 (or 143602 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1609220214 is about 40115.0871119583. The cubic root of 1609220214 is about 1171.8494659055.

Adding to 1609220214 its reverse (4120229061), we get a palindrome (5729449275).

The spelling of 1609220214 in words is "one billion, six hundred nine million, two hundred twenty thousand, two hundred fourteen".