2148422690 has 8 divisors (see below), whose sum is σ = 3867160860. Its totient is φ = 859369072.

The previous prime is 2148422671. The next prime is 2148422699. The reversal of 2148422690 is 962248412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2144338249 + 4084441 = 46307^2 + 2021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2148422690² = 9231440109813672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2148422699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107421125 + ... + 107421144.

Almost surely, 2^2148422690 is an apocalyptic number.

2148422690 is a deficient number, since it is larger than the sum of its proper divisors (1718738170).

2148422690 is a wasteful number, since it uses less digits than its factorization.

2148422690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214842276.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 2148422690 is about 46351.0807856732. The cubic root of 2148422690 is about 1290.3471793549.

The spelling of 2148422690 in words is "two billion, one hundred forty-eight million, four hundred twenty-two thousand, six hundred ninety".