42454831 has 8 divisors (see below), whose sum is σ = 45025200. Its totient is φ = 39892608.

The previous prime is 42454823. The next prime is 42454847. The reversal of 42454831 is 13845424.

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

It is not a de Polignac number, because 42454831 - 2³ = 42454823 is a prime.

It is a super-2 number, since 2×42454831² = 3604825350477122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42454793 and 42454802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42454871) 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, 11220 + ... + 14518.

It is an arithmetic number, because the mean of its divisors is an integer number (5628150).

Almost surely, 2^42454831 is an apocalyptic number.

42454831 is a deficient number, since it is larger than the sum of its proper divisors (2570369).

42454831 is a wasteful number, since it uses less digits than its factorization.

42454831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073.

The product of its digits is 15360, while the sum is 31.

The square root of 42454831 is about 6515.7371800894. The cubic root of 42454831 is about 348.8529277436.

It can be divided in two parts, 424 and 54831, that added together give a palindrome (55255).

The spelling of 42454831 in words is "forty-two million, four hundred fifty-four thousand, eight hundred thirty-one".