61180828 has 24 divisors (see below), whose sum is σ = 112764960. Its totient is φ = 28987200.

The previous prime is 61180729. The next prime is 61180831. The reversal of 61180828 is 82808116.

It is a junction number, because it is equal to n+sod(n) for n = 61180793 and 61180802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6978 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (4698540).

Almost surely, 2^61180828 is an apocalyptic number.

It is an amenable number.

61180828 is a deficient number, since it is larger than the sum of its proper divisors (51584132).

61180828 is a wasteful number, since it uses less digits than its factorization.

61180828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237 (or 6235 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 61180828 is about 7821.8174358649. The cubic root of 61180828 is about 394.0383121290.

The spelling of 61180828 in words is "sixty-one million, one hundred eighty thousand, eight hundred twenty-eight".