42028354 has 8 divisors (see below), whose sum is σ = 63692748. Its totient is φ = 20797440.

The previous prime is 42028351. The next prime is 42028367. The reversal of 42028354 is 45382024.

It can be written as a sum of positive squares in 2 ways, for example, as 40132225 + 1896129 = 6335^2 + 1377^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42028351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108127 + ... + 108514.

Almost surely, 2^42028354 is an apocalyptic number.

42028354 is a deficient number, since it is larger than the sum of its proper divisors (21664394).

42028354 is a wasteful number, since it uses less digits than its factorization.

42028354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216740.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 42028354 is about 6482.9278879222. The cubic root of 42028354 is about 347.6808685274.

The spelling of 42028354 in words is "forty-two million, twenty-eight thousand, three hundred fifty-four".