42458540 has 24 divisors (see below), whose sum is σ = 93856560. Its totient is φ = 16089408.

The previous prime is 42458539. The next prime is 42458551. The reversal of 42458540 is 4585424.

It is a junction number, because it is equal to n+sod(n) for n = 42458497 and 42458506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55487 + ... + 56246.

It is an arithmetic number, because the mean of its divisors is an integer number (3910690).

Almost surely, 2^42458540 is an apocalyptic number.

It is an amenable number.

42458540 is an abundant number, since it is smaller than the sum of its proper divisors (51398020).

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

42458540 is a wasteful number, since it uses less digits than its factorization.

42458540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111761 (or 111759 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 42458540 is about 6516.0217924743. The cubic root of 42458540 is about 348.8630864449.

The spelling of 42458540 in words is "forty-two million, four hundred fifty-eight thousand, five hundred forty".