2154959320 has 32 divisors (see below), whose sum is σ = 4851115920. Its totient is φ = 861546880.

The previous prime is 2154959293. The next prime is 2154959333. The reversal of 2154959320 is 239594512.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

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, 73059 + ... + 98221.

Almost surely, 2^2154959320 is an apocalyptic number.

2154959320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154959320 is an abundant number, since it is smaller than the sum of its proper divisors (2696156600).

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

2154959320 is a wasteful number, since it uses less digits than its factorization.

2154959320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27315 (or 27311 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 2154959320 is about 46421.5393971376. The cubic root of 2154959320 is about 1291.6544923075.

The spelling of 2154959320 in words is "two billion, one hundred fifty-four million, nine hundred fifty-nine thousand, three hundred twenty".