19142250 has 32 divisors (see below), whose sum is σ = 47780928. Its totient is φ = 5104400.

The previous prime is 19142237. The next prime is 19142251. The reversal of 19142250 is 5224191.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19142250.

It is not an unprimeable number, because it can be changed into a prime (19142251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12012 + ... + 13511.

It is an arithmetic number, because the mean of its divisors is an integer number (1493154).

Almost surely, 2^19142250 is an apocalyptic number.

19142250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19142250 is an abundant number, since it is smaller than the sum of its proper divisors (28638678).

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

19142250 is a wasteful number, since it uses less digits than its factorization.

19142250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25543 (or 25533 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 19142250 is about 4375.1857103442. The cubic root of 19142250 is about 267.5044399065.

The spelling of 19142250 in words is "nineteen million, one hundred forty-two thousand, two hundred fifty".