19012950 has 144 divisors (see below), whose sum is σ = 58496256. Its totient is φ = 4382400.

The previous prime is 19012921. The next prime is 19012969. The reversal of 19012950 is 5921091.

It is a happy number.

It is a super-2 number, since 2×19012950² = 722984535405000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 113767 + ... + 113933.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

Almost surely, 2^19012950 is an apocalyptic number.

19012950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19012950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29248128).

19012950 is an abundant number, since it is smaller than the sum of its proper divisors (39483306).

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

19012950 is a wasteful number, since it uses less digits than its factorization.

19012950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 19012950 is about 4360.3841573880. The cubic root of 19012950 is about 266.9007753169.

It can be divided in two parts, 1901 and 2950, that added together give a triangular number (4851 = T₉₈).

The spelling of 19012950 in words is "nineteen million, twelve thousand, nine hundred fifty".