2148896916 has 18 divisors (see below), whose sum is σ = 5431933962. Its totient is φ = 716298960.

The previous prime is 2148896909. The next prime is 2148896927. The reversal of 2148896916 is 6196988412.

It can be written as a sum of positive squares in only one way, i.e., 1141088400 + 1007808516 = 33780^2 + 31746^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2148896916² = 9235515911188622112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29845755 + ... + 29845826.

It is an arithmetic number, because the mean of its divisors is an integer number (301774109).

Almost surely, 2^2148896916 is an apocalyptic number.

It is an amenable number.

2148896916 is an abundant number, since it is smaller than the sum of its proper divisors (3283037046).

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

2148896916 is a wasteful number, since it uses less digits than its factorization.

2148896916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59691591 (or 59691586 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 2148896916 is about 46356.1960907061. The cubic root of 2148896916 is about 1290.4421127475.

The spelling of 2148896916 in words is "two billion, one hundred forty-eight million, eight hundred ninety-six thousand, nine hundred sixteen".