2154361328 has 40 divisors (see below), whose sum is σ = 4772551680. Its totient is φ = 922875840.

The previous prime is 2154361267. The next prime is 2154361343. The reversal of 2154361328 is 8231634512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458093 + ... + 462771.

It is an arithmetic number, because the mean of its divisors is an integer number (119313792).

Almost surely, 2^2154361328 is an apocalyptic number.

2154361328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2154361328 is an abundant number, since it is smaller than the sum of its proper divisors (2618190352).

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

2154361328 is a wasteful number, since it uses less digits than its factorization.

2154361328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8805 (or 8799 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 2154361328 is about 46415.0980608681. The cubic root of 2154361328 is about 1291.5350050543.

The spelling of 2154361328 in words is "two billion, one hundred fifty-four million, three hundred sixty-one thousand, three hundred twenty-eight".