61628130 has 24 divisors (see below), whose sum is σ = 160233372. Its totient is φ = 16434144.

The previous prime is 61628129. The next prime is 61628131. The reversal of 61628130 is 3182616.

61628130 is a `hidden beast` number, since 6 + 1 + 628 + 1 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (61628129) and next prime (61628131).

It can be written as a sum of positive squares in 2 ways, for example, as 60886809 + 741321 = 7803^2 + 861^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61628094 and 61628103.

It is not an unprimeable number, because it can be changed into a prime (61628131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342289 + ... + 342468.

Almost surely, 2^61628130 is an apocalyptic number.

61628130 is an abundant number, since it is smaller than the sum of its proper divisors (98605242).

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

61628130 is a wasteful number, since it uses less digits than its factorization.

61628130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684770 (or 684767 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 61628130 is about 7850.3585905358. The cubic root of 61628130 is about 394.9962719298.

The spelling of 61628130 in words is "sixty-one million, six hundred twenty-eight thousand, one hundred thirty".