1630442212 has 24 divisors (see below), whose sum is σ = 3432511040. Its totient is φ = 661983840.

The previous prime is 1630442207. The next prime is 1630442213. The reversal of 1630442212 is 2122440361.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1630442213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531839 + ... + 1532902.

Almost surely, 2^1630442212 is an apocalyptic number.

It is an amenable number.

1630442212 is an abundant number, since it is smaller than the sum of its proper divisors (1802068828).

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

1630442212 is a wasteful number, since it uses less digits than its factorization.

1630442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064771 (or 3064769 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1630442212 is about 40378.7346508035. The cubic root of 1630442212 is about 1176.9783390428.

Adding to 1630442212 its reverse (2122440361), we get a palindrome (3752882573).

The spelling of 1630442212 in words is "one billion, six hundred thirty million, four hundred forty-two thousand, two hundred twelve".