19677044 has 12 divisors (see below), whose sum is σ = 35365764. Its totient is φ = 9572544.

The previous prime is 19677043. The next prime is 19677061. The reversal of 19677044 is 44077691.

It can be written as a sum of positive squares in 2 ways, for example, as 15523600 + 4153444 = 3940^2 + 2038^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19676989 and 19677007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19677043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66329 + ... + 66624.

It is an arithmetic number, because the mean of its divisors is an integer number (2947147).

Almost surely, 2^19677044 is an apocalyptic number.

It is an amenable number.

19677044 is a deficient number, since it is larger than the sum of its proper divisors (15688720).

19677044 is a wasteful number, since it uses less digits than its factorization.

19677044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132994 (or 132992 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 19677044 is about 4435.8814231221. The cubic root of 19677044 is about 269.9727635992.

The spelling of 19677044 in words is "nineteen million, six hundred seventy-seven thousand, forty-four".