19090272 has 48 divisors (see below), whose sum is σ = 51190272. Its totient is φ = 6226560.

The previous prime is 19090241. The next prime is 19090273. The reversal of 19090272 is 27209091.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19090273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2397 + ... + 6627.

It is an arithmetic number, because the mean of its divisors is an integer number (1066464).

Almost surely, 2^19090272 is an apocalyptic number.

19090272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19090272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25595136).

19090272 is an abundant number, since it is smaller than the sum of its proper divisors (32100000).

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

19090272 is a wasteful number, since it uses less digits than its factorization.

19090272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291 (or 4283 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 19090272 is about 4369.2415817851. The cubic root of 19090272 is about 267.2620972722.

The spelling of 19090272 in words is "nineteen million, ninety thousand, two hundred seventy-two".