19249272 has 128 divisors (see below), whose sum is σ = 63360000. Its totient is φ = 5298048.

The previous prime is 19249267. The next prime is 19249309. The reversal of 19249272 is 27294291.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43629 + ... + 44067.

It is an arithmetic number, because the mean of its divisors is an integer number (495000).

Almost surely, 2^19249272 is an apocalyptic number.

19249272 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 19249272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31680000).

19249272 is an abundant number, since it is smaller than the sum of its proper divisors (44110728).

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

19249272 is a wasteful number, since it uses less digits than its factorization.

19249272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 480 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 19249272 is about 4387.3992296120. The cubic root of 19249272 is about 268.0020420131.

The spelling of 19249272 in words is "nineteen million, two hundred forty-nine thousand, two hundred seventy-two".