2028395940 has 24 divisors (see below), whose sum is σ = 5679508800. Its totient is φ = 540905568.

The previous prime is 2028395927. The next prime is 2028395951. The reversal of 2028395940 is 495938202.

It is a super-2 number, since 2×2028395940² = 8228780178816967200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028395892 and 2028395901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16903240 + ... + 16903359.

It is an arithmetic number, because the mean of its divisors is an integer number (236646200).

Almost surely, 2^2028395940 is an apocalyptic number.

2028395940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2028395940 is an abundant number, since it is smaller than the sum of its proper divisors (3651112860).

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

2028395940 is a wasteful number, since it uses less digits than its factorization.

2028395940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33806611 (or 33806609 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 2028395940 is about 45037.7168604271. The cubic root of 2028395940 is about 1265.8558243957.

The spelling of 2028395940 in words is "two billion, twenty-eight million, three hundred ninety-five thousand, nine hundred forty".