2028400074 has 24 divisors (see below), whose sum is σ = 4395911520. Its totient is φ = 675972648.

The previous prime is 2028400039. The next prime is 2028400097. The reversal of 2028400074 is 4700048202.

It is a super-2 number, since 2×2028400074² = 8228813720406410952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83307 + ... + 104865.

It is an arithmetic number, because the mean of its divisors is an integer number (183162980).

Almost surely, 2^2028400074 is an apocalyptic number.

2028400074 is an abundant number, since it is smaller than the sum of its proper divisors (2367511446).

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

2028400074 is a wasteful number, since it uses less digits than its factorization.

2028400074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26794 (or 26791 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 2028400074 is about 45037.7627552702. The cubic root of 2028400074 is about 1265.8566843600.

Adding to 2028400074 its reverse (4700048202), we get a palindrome (6728448276).

It can be divided in two parts, 202840007 and 4, that added together give a triangular number (202840011 = T₂₀₁₄₁).

The spelling of 2028400074 in words is "two billion, twenty-eight million, four hundred thousand, seventy-four".