2028194742 has 16 divisors (see below), whose sum is σ = 4635873792. Its totient is φ = 579484200.

The previous prime is 2028194711. The next prime is 2028194761. The reversal of 2028194742 is 2474918202.

It is a happy number.

It is a super-2 number, since 2×2028194742² = 8227147822952893128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2028194742.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24145134 + ... + 24145217.

It is an arithmetic number, because the mean of its divisors is an integer number (289742112).

Almost surely, 2^2028194742 is an apocalyptic number.

2028194742 is an abundant number, since it is smaller than the sum of its proper divisors (2607679050).

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

2028194742 is a wasteful number, since it uses less digits than its factorization.

2028194742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48290363.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 2028194742 is about 45035.4831438500. The cubic root of 2028194742 is about 1265.8139693061.

The spelling of 2028194742 in words is "two billion, twenty-eight million, one hundred ninety-four thousand, seven hundred forty-two".