61078428 has 48 divisors (see below), whose sum is σ = 158783520. Its totient is φ = 20304000.

The previous prime is 61078417. The next prime is 61078429. The reversal of 61078428 is 82487016.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 61078392 and 61078401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61078429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64438 + ... + 65378.

It is an arithmetic number, because the mean of its divisors is an integer number (3307990).

Almost surely, 2^61078428 is an apocalyptic number.

It is an amenable number.

61078428 is an abundant number, since it is smaller than the sum of its proper divisors (97705092).

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

61078428 is a wasteful number, since it uses less digits than its factorization.

61078428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 61078428 is about 7815.2689013239. The cubic root of 61078428 is about 393.8183518528.

It can be divided in two parts, 6107 and 8428, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 61078428 in words is "sixty-one million, seventy-eight thousand, four hundred twenty-eight".