2154920236 has 36 divisors (see below), whose sum is σ = 4528324416. Its totient is φ = 893743200.

The previous prime is 2154920213. The next prime is 2154920239. The reversal of 2154920236 is 6320294512.

It is not an unprimeable number, because it can be changed into a prime (2154920239) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 171255 + ... + 183406.

Almost surely, 2^2154920236 is an apocalyptic number.

It is an amenable number.

2154920236 is an abundant number, since it is smaller than the sum of its proper divisors (2373404180).

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

2154920236 is a wasteful number, since it uses less digits than its factorization.

2154920236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354710 (or 354701 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2154920236 is about 46421.1184268540. The cubic root of 2154920236 is about 1291.6466834471.

The spelling of 2154920236 in words is "two billion, one hundred fifty-four million, nine hundred twenty thousand, two hundred thirty-six".