42121334 has 8 divisors (see below), whose sum is σ = 63211320. Its totient is φ = 21050896.

The previous prime is 42121333. The next prime is 42121351. The reversal of 42121334 is 43312124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42121333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3137 + ... + 9699.

It is an arithmetic number, because the mean of its divisors is an integer number (7901415).

Almost surely, 2^42121334 is an apocalyptic number.

42121334 is a deficient number, since it is larger than the sum of its proper divisors (21089986).

42121334 is a wasteful number, since it uses less digits than its factorization.

42121334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774.

The product of its digits is 576, while the sum is 20.

The square root of 42121334 is about 6490.0950686411. The cubic root of 42121334 is about 347.9370730012.

Adding to 42121334 its reverse (43312124), we get a palindrome (85433458).

It can be divided in two parts, 42 and 121334, that multiplied together give a triangular number (5096028 = T₃₁₉₂).

The spelling of 42121334 in words is "forty-two million, one hundred twenty-one thousand, three hundred thirty-four".