42142450 has 72 divisors (see below), whose sum is σ = 92619072. Its totient is φ = 14222880.

The previous prime is 42142427. The next prime is 42142453. The reversal of 42142450 is 5424124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42142453) 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 35 ways as a sum of consecutive naturals, for example, 252267 + ... + 252433.

It is an arithmetic number, because the mean of its divisors is an integer number (1286376).

Almost surely, 2^42142450 is an apocalyptic number.

42142450 is an abundant number, since it is smaller than the sum of its proper divisors (50476622).

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

42142450 is a wasteful number, since it uses less digits than its factorization.

42142450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42142450 is about 6491.7216514573. The cubic root of 42142450 is about 347.9952051570.

Adding to 42142450 its reverse (5424124), we get a palindrome (47566574).

The spelling of 42142450 in words is "forty-two million, one hundred forty-two thousand, four hundred fifty".