19042452 has 144 divisors (see below), whose sum is σ = 59072832. Its totient is φ = 5287680.

The previous prime is 19042451. The next prime is 19042477. The reversal of 19042452 is 25424091.

19042452 is a `hidden beast` number, since 190 + 424 + 52 = 666.

It is a super-2 number, since 2×19042452² = 725229956344608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19042451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138928 + ... + 139064.

It is an arithmetic number, because the mean of its divisors is an integer number (410228).

Almost surely, 2^19042452 is an apocalyptic number.

19042452 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 19042452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29536416).

19042452 is an abundant number, since it is smaller than the sum of its proper divisors (40030380).

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

19042452 is a wasteful number, since it uses less digits than its factorization.

19042452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 19042452 is about 4363.7658048983. The cubic root of 19042452 is about 267.0387521079.

It can be divided in two parts, 1904 and 2452, that added together give a square (4356 = 66²).

The spelling of 19042452 in words is "nineteen million, forty-two thousand, four hundred fifty-two".