19012068 has 36 divisors (see below), whose sum is σ = 48222720. Its totient is φ = 6315696.

The previous prime is 19012051. The next prime is 19012087. The reversal of 19012068 is 86021091.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×19012068² = 722917459273248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12493 + ... + 13931.

It is an arithmetic number, because the mean of its divisors is an integer number (1339520).

Almost surely, 2^19012068 is an apocalyptic number.

19012068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19012068 is an abundant number, since it is smaller than the sum of its proper divisors (29210652).

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

19012068 is a wasteful number, since it uses less digits than its factorization.

19012068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 19012068 is about 4360.2830183372. The cubic root of 19012068 is about 266.8966481277.

It can be divided in two parts, 1901 and 2068, that added together give a square (3969 = 63²).

The spelling of 19012068 in words is "nineteen million, twelve thousand, sixty-eight".