61447430 has 48 divisors (see below), whose sum is σ = 124507152. Its totient is φ = 21806400.

The previous prime is 61447423. The next prime is 61447439. The reversal of 61447430 is 3474416.

61447430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61447393 and 61447402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61447439) 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, 51440 + ... + 52620.

It is an arithmetic number, because the mean of its divisors is an integer number (2593899).

Almost surely, 2^61447430 is an apocalyptic number.

61447430 is an abundant number, since it is smaller than the sum of its proper divisors (63059722).

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

61447430 is a wasteful number, since it uses less digits than its factorization.

61447430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 61447430 is about 7838.8411133279. The cubic root of 61447430 is about 394.6098374633.

The spelling of 61447430 in words is "sixty-one million, four hundred forty-seven thousand, four hundred thirty".