61421442 has 32 divisors (see below), whose sum is σ = 130408704. Its totient is φ = 19219200.

The previous prime is 61421441. The next prime is 61421453. The reversal of 61421442 is 24412416.

It is a happy number.

61421442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61421441) 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 15 ways as a sum of consecutive naturals, for example, 66967 + ... + 67877.

It is an arithmetic number, because the mean of its divisors is an integer number (4075272).

Almost surely, 2^61421442 is an apocalyptic number.

61421442 is an abundant number, since it is smaller than the sum of its proper divisors (68987262).

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

61421442 is a wasteful number, since it uses less digits than its factorization.

61421442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594.

The product of its digits is 1536, while the sum is 24.

The square root of 61421442 is about 7837.1832950366. The cubic root of 61421442 is about 394.5541987570.

Adding to 61421442 its reverse (24412416), we get a palindrome (85833858).

The spelling of 61421442 in words is "sixty-one million, four hundred twenty-one thousand, four hundred forty-two".