61439352 has 64 divisors (see below), whose sum is σ = 166440960. Its totient is φ = 18787200.

The previous prime is 61439347. The next prime is 61439363. The reversal of 61439352 is 25393416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59077 + ... + 60107.

It is an arithmetic number, because the mean of its divisors is an integer number (2600640).

Almost surely, 2^61439352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61439352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83220480).

61439352 is an abundant number, since it is smaller than the sum of its proper divisors (105001608).

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

61439352 is a wasteful number, since it uses less digits than its factorization.

61439352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1240 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 61439352 is about 7838.3258416578. The cubic root of 61439352 is about 394.5925446437.

The spelling of 61439352 in words is "sixty-one million, four hundred thirty-nine thousand, three hundred fifty-two".