2154661424 has 40 divisors (see below), whose sum is σ = 4272539040. Its totient is φ = 1052352000.

The previous prime is 2154661423. The next prime is 2154661433. The reversal of 2154661424 is 4241664512.

It is not an unprimeable number, because it can be changed into a prime (2154661423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115124 + ... + 132524.

It is an arithmetic number, because the mean of its divisors is an integer number (106813476).

Almost surely, 2^2154661424 is an apocalyptic number.

It is an amenable number.

2154661424 is a deficient number, since it is larger than the sum of its proper divisors (2117877616).

2154661424 is a wasteful number, since it uses less digits than its factorization.

2154661424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17589 (or 17583 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 2154661424 is about 46418.3306895024. The cubic root of 2154661424 is about 1291.5949712399.

The spelling of 2154661424 in words is "two billion, one hundred fifty-four million, six hundred sixty-one thousand, four hundred twenty-four".