42578354 has 48 divisors (see below), whose sum is σ = 84268800. Its totient is φ = 15948576.

The previous prime is 42578321. The next prime is 42578357. The reversal of 42578354 is 45387524.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (42578357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23327 + ... + 25085.

It is an arithmetic number, because the mean of its divisors is an integer number (1755600).

Almost surely, 2^42578354 is an apocalyptic number.

42578354 is a deficient number, since it is larger than the sum of its proper divisors (41690446).

42578354 is a wasteful number, since it uses less digits than its factorization.

42578354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807 (or 1800 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 42578354 is about 6525.2091154230. The cubic root of 42578354 is about 349.1909311772.

The spelling of 42578354 in words is "forty-two million, five hundred seventy-eight thousand, three hundred fifty-four".