42151788 has 36 divisors (see below), whose sum is σ = 121772560. Its totient is φ = 12043296.

The previous prime is 42151787. The next prime is 42151829. The reversal of 42151788 is 88715124.

42151788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42151787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83383 + ... + 83886.

Almost surely, 2^42151788 is an apocalyptic number.

It is an amenable number.

42151788 is an abundant number, since it is smaller than the sum of its proper divisors (79620772).

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

42151788 is a wasteful number, since it uses less digits than its factorization.

42151788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167286 (or 167281 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 42151788 is about 6492.4408353099. The cubic root of 42151788 is about 348.0209063936.

The spelling of 42151788 in words is "forty-two million, one hundred fifty-one thousand, seven hundred eighty-eight".