2990630144 has 18 divisors (see below), whose sum is σ = 5969578650. Its totient is φ = 1495314944.

The previous prime is 2990630141. The next prime is 2990630161. The reversal of 2990630144 is 4410360992.

It can be written as a sum of positive squares in only one way, i.e., 1807270144 + 1183360000 = 42512^2 + 34400^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2990630098 and 2990630107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990630141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5840819 + ... + 5841330.

Almost surely, 2^2990630144 is an apocalyptic number.

It is an amenable number.

2990630144 is a deficient number, since it is larger than the sum of its proper divisors (2978948506).

2990630144 is an equidigital number, since it uses as much as digits as its factorization.

2990630144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11682165 (or 11682151 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 2990630144 is about 54686.6541671732. The cubic root of 2990630144 is about 1440.7464853886.

The spelling of 2990630144 in words is "two billion, nine hundred ninety million, six hundred thirty thousand, one hundred forty-four".