2028421742 has 8 divisors (see below), whose sum is σ = 3221611056. Its totient is φ = 954551392.

The previous prime is 2028421693. The next prime is 2028421751. The reversal of 2028421742 is 2471248202.

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

It is a super-2 number, since 2×2028421742² = 8228989526836629128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028421699 and 2028421708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29829698 + ... + 29829765.

It is an arithmetic number, because the mean of its divisors is an integer number (402701382).

Almost surely, 2^2028421742 is an apocalyptic number.

2028421742 is a deficient number, since it is larger than the sum of its proper divisors (1193189314).

2028421742 is a wasteful number, since it uses less digits than its factorization.

2028421742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59659482.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 2028421742 is about 45038.0033083173. The cubic root of 2028421742 is about 1265.8611917688.

Adding to 2028421742 its reverse (2471248202), we get a palindrome (4499669944).

The spelling of 2028421742 in words is "two billion, twenty-eight million, four hundred twenty-one thousand, seven hundred forty-two".