19074144 has 24 divisors (see below), whose sum is σ = 50069880. Its totient is φ = 6358016.

The previous prime is 19074127. The next prime is 19074161. The reversal of 19074144 is 44147091.

It is an interprime number because it is at equal distance from previous prime (19074127) and next prime (19074161).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99249 + ... + 99440.

It is an arithmetic number, because the mean of its divisors is an integer number (2086245).

Almost surely, 2^19074144 is an apocalyptic number.

It is an amenable number.

19074144 is an abundant number, since it is smaller than the sum of its proper divisors (30995736).

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

19074144 is a wasteful number, since it uses less digits than its factorization.

19074144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198702 (or 198694 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 19074144 is about 4367.3955625750. The cubic root of 19074144 is about 267.1868125491.

The spelling of 19074144 in words is "nineteen million, seventy-four thousand, one hundred forty-four".