42545458 has 16 divisors (see below), whose sum is σ = 68027904. Its totient is φ = 19886400.

The previous prime is 42545453. The next prime is 42545467. The reversal of 42545458 is 85454524.

It is not an unprimeable number, because it can be changed into a prime (42545453) 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, 991 + ... + 9277.

It is an arithmetic number, because the mean of its divisors is an integer number (4251744).

Almost surely, 2^42545458 is an apocalyptic number.

42545458 is a deficient number, since it is larger than the sum of its proper divisors (25482446).

42545458 is a wasteful number, since it uses less digits than its factorization.

42545458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8457.

The product of its digits is 128000, while the sum is 37.

The square root of 42545458 is about 6522.6879428653. The cubic root of 42545458 is about 349.1009798026.

The spelling of 42545458 in words is "forty-two million, five hundred forty-five thousand, four hundred fifty-eight".