61443428 has 12 divisors (see below), whose sum is σ = 108248700. Its totient is φ = 30515232.

The previous prime is 61443427. The next prime is 61443433. The reversal of 61443428 is 82434416.

61443428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17909824 + 43533604 = 4232^2 + 6598^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61443394 and 61443403.

It is not an unprimeable number, because it can be changed into a prime (61443427) 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 3 ways as a sum of consecutive naturals, for example, 50951 + ... + 52142.

It is an arithmetic number, because the mean of its divisors is an integer number (9020725).

Almost surely, 2^61443428 is an apocalyptic number.

It is an amenable number.

61443428 is a deficient number, since it is larger than the sum of its proper divisors (46805272).

61443428 is a wasteful number, since it uses less digits than its factorization.

61443428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103246 (or 103244 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 61443428 is about 7838.5858418467. The cubic root of 61443428 is about 394.6012704500.

The spelling of 61443428 in words is "sixty-one million, four hundred forty-three thousand, four hundred twenty-eight".