42903057 has 16 divisors (see below), whose sum is σ = 58874112. Its totient is φ = 27776640.

The previous prime is 42903043. The next prime is 42903059. The reversal of 42903057 is 75030924.

It is not a de Polignac number, because 42903057 - 2⁷ = 42902929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42903059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18207 + ... + 20427.

It is an arithmetic number, because the mean of its divisors is an integer number (3679632).

Almost surely, 2^42903057 is an apocalyptic number.

42903057 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42903057 is a deficient number, since it is larger than the sum of its proper divisors (15971055).

42903057 is a wasteful number, since it uses less digits than its factorization.

42903057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 42903057 is about 6550.0425189460. The cubic root of 42903057 is about 350.0763289310.

The spelling of 42903057 in words is "forty-two million, nine hundred three thousand, fifty-seven".