19877034 has 16 divisors (see below), whose sum is σ = 39863520. Its totient is φ = 6607440.

The previous prime is 19877027. The next prime is 19877057. The reversal of 19877034 is 43077891.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19876983 and 19877001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097 + ... + 6644.

It is an arithmetic number, because the mean of its divisors is an integer number (2491470).

Almost surely, 2^19877034 is an apocalyptic number.

19877034 is an abundant number, since it is smaller than the sum of its proper divisors (19986486).

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

19877034 is a wasteful number, since it uses less digits than its factorization.

19877034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 19877034 is about 4458.3667413079. The cubic root of 19877034 is about 270.8843158513.

The spelling of 19877034 in words is "nineteen million, eight hundred seventy-seven thousand, thirty-four".