2028118456 has 64 divisors (see below), whose sum is σ = 4831303680. Its totient is φ = 776442240.

The previous prime is 2028118453. The next prime is 2028118471. The reversal of 2028118456 is 6548118202.

It is a super-2 number, since 2×2028118456² = 8226528943135647872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028118453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22366 + ... + 67501.

It is an arithmetic number, because the mean of its divisors is an integer number (75489120).

Almost surely, 2^2028118456 is an apocalyptic number.

2028118456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2028118456 is an abundant number, since it is smaller than the sum of its proper divisors (2803185224).

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

2028118456 is a wasteful number, since it uses less digits than its factorization.

2028118456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89924 (or 89920 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2028118456 is about 45034.6361814992. The cubic root of 2028118456 is about 1265.7980988552.

The spelling of 2028118456 in words is "two billion, twenty-eight million, one hundred eighteen thousand, four hundred fifty-six".