42042054 has 64 divisors (see below), whose sum is σ = 94011840. Its totient is φ = 12472320.

The previous prime is 42042053. The next prime is 42042059. The reversal of 42042054 is 45024024.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42042054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42042053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180322 + ... + 180554.

It is an arithmetic number, because the mean of its divisors is an integer number (1468935).

Almost surely, 2^42042054 is an apocalyptic number.

42042054 is an abundant number, since it is smaller than the sum of its proper divisors (51969786).

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

42042054 is a wasteful number, since it uses less digits than its factorization.

42042054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 42042054 is about 6483.9844231768. The cubic root of 42042054 is about 347.7186423157.

Adding to 42042054 its reverse (45024024), we get a palindrome (87066078).

The spelling of 42042054 in words is "forty-two million, forty-two thousand, fifty-four", and thus it is an eban number.