2148941988 has 30 divisors (see below), whose sum is σ = 5617759686. Its totient is φ = 716313888.

The previous prime is 2148941983. The next prime is 2148941999. The reversal of 2148941988 is 8891498412.

It is a happy number.

2148941988 is a `hidden beast` number, since 2 + 148 + 9 + 419 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2075531364 + 73410624 = 45558^2 + 8568^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2148941983) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3315945 + ... + 3316592.

Almost surely, 2^2148941988 is an apocalyptic number.

It is an amenable number.

2148941988 is an abundant number, since it is smaller than the sum of its proper divisors (3468817698).

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

2148941988 is a wasteful number, since it uses less digits than its factorization.

2148941988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6632553 (or 6632542 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The square root of 2148941988 is about 46356.6822367606. The cubic root of 2148941988 is about 1290.4511348027.

The spelling of 2148941988 in words is "two billion, one hundred forty-eight million, nine hundred forty-one thousand, nine hundred eighty-eight".