42942510 has 144 divisors (see below), whose sum is σ = 128733696. Its totient is φ = 9870336.

The previous prime is 42942481. The next prime is 42942517. The reversal of 42942510 is 1524924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42942517) 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 71 ways as a sum of consecutive naturals, for example, 338067 + ... + 338193.

It is an arithmetic number, because the mean of its divisors is an integer number (893984).

Almost surely, 2^42942510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42942510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64366848).

42942510 is an abundant number, since it is smaller than the sum of its proper divisors (85791186).

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

42942510 is a wasteful number, since it uses less digits than its factorization.

42942510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42942510 is about 6553.0534867343. The cubic root of 42942510 is about 350.1836043476.

The spelling of 42942510 in words is "forty-two million, nine hundred forty-two thousand, five hundred ten".