2028172436 has 12 divisors (see below), whose sum is σ = 3609459840. Its totient is φ = 996898200.

The previous prime is 2028172429. The next prime is 2028172457. The reversal of 2028172436 is 6342718202.

It is a super-2 number, since 2×2028172436² = 8226966860300348192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028172396 and 2028172405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4296740 + ... + 4297211.

It is an arithmetic number, because the mean of its divisors is an integer number (300788320).

Almost surely, 2^2028172436 is an apocalyptic number.

It is an amenable number.

2028172436 is a deficient number, since it is larger than the sum of its proper divisors (1581287404).

2028172436 is a wasteful number, since it uses less digits than its factorization.

2028172436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8594014 (or 8594012 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 2028172436 is about 45035.2354939996. The cubic root of 2028172436 is about 1265.8093288329.

The spelling of 2028172436 in words is "two billion, twenty-eight million, one hundred seventy-two thousand, four hundred thirty-six".