42121302 has 16 divisors (see below), whose sum is σ = 84469440. Its totient is φ = 14002632.

The previous prime is 42121301. The next prime is 42121327. The reversal of 42121302 is 20312124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42121301) 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 7 ways as a sum of consecutive naturals, for example, 6988 + ... + 11535.

It is an arithmetic number, because the mean of its divisors is an integer number (5279340).

Almost surely, 2^42121302 is an apocalyptic number.

42121302 is an abundant number, since it is smaller than the sum of its proper divisors (42348138).

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

42121302 is a wasteful number, since it uses less digits than its factorization.

42121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18907.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 42121302 is about 6490.0926033455. The cubic root of 42121302 is about 347.9369848907.

Adding to 42121302 its reverse (20312124), we get a palindrome (62433426).

The spelling of 42121302 in words is "forty-two million, one hundred twenty-one thousand, three hundred two".