1630723212 has 24 divisors (see below), whose sum is σ = 4227801200. Its totient is φ = 543574368.

The previous prime is 1630723201. The next prime is 1630723219. The reversal of 1630723212 is 2123270361.

1630723212 is a `hidden beast` number, since 1 + 630 + 7 + 2 + 3 + 21 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1630723219) 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, 7549537 + ... + 7549752.

Almost surely, 2^1630723212 is an apocalyptic number.

1630723212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1630723212 is an abundant number, since it is smaller than the sum of its proper divisors (2597077988).

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

1630723212 is a wasteful number, since it uses less digits than its factorization.

1630723212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15099302 (or 15099294 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1630723212 is about 40382.2140552001. The cubic root of 1630723212 is about 1177.0459509484.

Adding to 1630723212 its reverse (2123270361), we get a palindrome (3753993573).

The spelling of 1630723212 in words is "one billion, six hundred thirty million, seven hundred twenty-three thousand, two hundred twelve".