2028273646 has 8 divisors (see below), whose sum is σ = 3477040560. Its totient is φ = 869260128.

The previous prime is 2028273641. The next prime is 2028273661. The reversal of 2028273646 is 6463728202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2028273646² = 8227787966116266632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028273599 and 2028273608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028273641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72438331 + ... + 72438358.

It is an arithmetic number, because the mean of its divisors is an integer number (434630070).

Almost surely, 2^2028273646 is an apocalyptic number.

2028273646 is a deficient number, since it is larger than the sum of its proper divisors (1448766914).

2028273646 is a wasteful number, since it uses less digits than its factorization.

2028273646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144876698.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 2028273646 is about 45036.3591556866. The cubic root of 2028273646 is about 1265.8303839840.

The spelling of 2028273646 in words is "two billion, twenty-eight million, two hundred seventy-three thousand, six hundred forty-six".