42454338 has 16 divisors (see below), whose sum is σ = 89903520. Its totient is φ = 13318976.

The previous prime is 42454333. The next prime is 42454339. The reversal of 42454338 is 83345424.

It is a junction number, because it is equal to n+sod(n) for n = 42454299 and 42454308.

It is not an unprimeable number, because it can be changed into a prime (42454333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208008 + ... + 208211.

It is an arithmetic number, because the mean of its divisors is an integer number (5618970).

Almost surely, 2^42454338 is an apocalyptic number.

42454338 is an abundant number, since it is smaller than the sum of its proper divisors (47449182).

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

42454338 is a wasteful number, since it uses less digits than its factorization.

42454338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416241.

The product of its digits is 46080, while the sum is 33.

The square root of 42454338 is about 6515.6993484967. The cubic root of 42454338 is about 348.8515774053.

It can be divided in two parts, 424543 and 38, that added together give a triangular number (424581 = T₉₂₁).

The spelling of 42454338 in words is "forty-two million, four hundred fifty-four thousand, three hundred thirty-eight".