19550868 has 24 divisors (see below), whose sum is σ = 46301472. Its totient is φ = 6419424.

The previous prime is 19550849. The next prime is 19550929. The reversal of 19550868 is 86805591.

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, 11355 + ... + 12962.

It is an arithmetic number, because the mean of its divisors is an integer number (1929228).

Almost surely, 2^19550868 is an apocalyptic number.

It is an amenable number.

19550868 is an abundant number, since it is smaller than the sum of its proper divisors (26750604).

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

19550868 is a wasteful number, since it uses less digits than its factorization.

19550868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24391 (or 24389 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 19550868 is about 4421.6363486836. The cubic root of 19550868 is about 269.3944729078.

The spelling of 19550868 in words is "nineteen million, five hundred fifty thousand, eight hundred sixty-eight".