61128838 has 32 divisors (see below), whose sum is σ = 102021120. Its totient is φ = 27338880.

The previous prime is 61128817. The next prime is 61128853. The reversal of 61128838 is 83882116.

It is a junction number, because it is equal to n+sod(n) for n = 61128797 and 61128806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61695 + ... + 62677.

It is an arithmetic number, because the mean of its divisors is an integer number (3188160).

Almost surely, 2^61128838 is an apocalyptic number.

61128838 is a deficient number, since it is larger than the sum of its proper divisors (40892282).

61128838 is a wasteful number, since it uses less digits than its factorization.

61128838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092.

The product of its digits is 18432, while the sum is 37.

The square root of 61128838 is about 7818.4933331173. The cubic root of 61128838 is about 393.9266657298.

The spelling of 61128838 in words is "sixty-one million, one hundred twenty-eight thousand, eight hundred thirty-eight".