42121062 has 48 divisors (see below), whose sum is σ = 97344000. Its totient is φ = 13124592.

The previous prime is 42121007. The next prime is 42121067. The reversal of 42121062 is 26012124.

42121062 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42121067) 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 23 ways as a sum of consecutive naturals, for example, 26239 + ... + 27797.

It is an arithmetic number, because the mean of its divisors is an integer number (2028000).

Almost surely, 2^42121062 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42121062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48672000).

42121062 is an abundant number, since it is smaller than the sum of its proper divisors (55222938).

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

42121062 is a wasteful number, since it uses less digits than its factorization.

42121062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42121062 is about 6490.0741135984. The cubic root of 42121062 is about 347.9363240609.

Adding to 42121062 its reverse (26012124), we get a palindrome (68133186).

It can be divided in two parts, 42 and 121062, that added together give a square (121104 = 348²).

The spelling of 42121062 in words is "forty-two million, one hundred twenty-one thousand, sixty-two".