1630996922 has 4 divisors (see below), whose sum is σ = 2446495386. Its totient is φ = 815498460.

The previous prime is 1630996921. The next prime is 1630996951. The reversal of 1630996922 is 2296990361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 955984561 + 675012361 = 30919^2 + 25981^2 .

It is not an unprimeable number, because it can be changed into a prime (1630996921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407749229 + ... + 407749232.

Almost surely, 2^1630996922 is an apocalyptic number.

1630996922 is a deficient number, since it is larger than the sum of its proper divisors (815498464).

1630996922 is an equidigital number, since it uses as much as digits as its factorization.

1630996922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815498463.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 1630996922 is about 40385.6029049957. The cubic root of 1630996922 is about 1177.1118013273. Note that the first 3 decimals are identical.

The spelling of 1630996922 in words is "one billion, six hundred thirty million, nine hundred ninety-six thousand, nine hundred twenty-two".