42051504 has 80 divisors (see below), whose sum is σ = 120242304. Its totient is φ = 12556800.

The previous prime is 42051491. The next prime is 42051517. The reversal of 42051504 is 40515024.

It is an interprime number because it is at equal distance from previous prime (42051491) and next prime (42051517).

It is an unprimeable number.

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, 37999 + ... + 39089.

Almost surely, 2^42051504 is an apocalyptic number.

42051504 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42051504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60121152).

42051504 is an abundant number, since it is smaller than the sum of its proper divisors (78190800).

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

42051504 is a wasteful number, since it uses less digits than its factorization.

42051504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 42051504 is about 6484.7131008241. The cubic root of 42051504 is about 347.7446931758.

Adding to 42051504 its reverse (40515024), we get a palindrome (82566528).

The spelling of 42051504 in words is "forty-two million, fifty-one thousand, five hundred four".