61441340 has 12 divisors (see below), whose sum is σ = 129026856. Its totient is φ = 24576528.

The previous prime is 61441337. The next prime is 61441379. The reversal of 61441340 is 4314416.

61441340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1536014 + ... + 1536053.

It is an arithmetic number, because the mean of its divisors is an integer number (10752238).

Almost surely, 2^61441340 is an apocalyptic number.

It is an amenable number.

61441340 is an abundant number, since it is smaller than the sum of its proper divisors (67585516).

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

61441340 is a wasteful number, since it uses less digits than its factorization.

61441340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072076 (or 3072074 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 61441340 is about 7838.4526534259. The cubic root of 61441340 is about 394.5968005562.

Adding to 61441340 its reverse (4314416), we get a palindrome (65755756).

The spelling of 61441340 in words is "sixty-one million, four hundred forty-one thousand, three hundred forty".