19254972 has 72 divisors (see below), whose sum is σ = 50274000. Its totient is φ = 5730560.

The previous prime is 19254967. The next prime is 19254973. The reversal of 19254972 is 27945291.

It is a self number, because there is not a number n which added to its sum of digits gives 19254972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19254973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129154 + ... + 129302.

It is an arithmetic number, because the mean of its divisors is an integer number (698250).

Almost surely, 2^19254972 is an apocalyptic number.

19254972 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 19254972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25137000).

19254972 is an abundant number, since it is smaller than the sum of its proper divisors (31019028).

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

19254972 is a wasteful number, since it uses less digits than its factorization.

19254972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 254 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 19254972 is about 4388.0487691000. The cubic root of 19254972 is about 268.0284925525.

The spelling of 19254972 in words is "nineteen million, two hundred fifty-four thousand, nine hundred seventy-two".