19103040 has 280 divisors, whose sum is σ = 75236832. Its totient is φ = 4561920.

The previous prime is 19103033. The next prime is 19103081. The reversal of 19103040 is 4030191.

It is a super-2 number, since 2×19103040² = 729852274483200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 39 ways as a sum of consecutive naturals, for example, 285087 + ... + 285153.

Almost surely, 2^19103040 is an apocalyptic number.

19103040 is a gapful number since it is divisible by the number (10) 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 19103040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37618416).

19103040 is an abundant number, since it is smaller than the sum of its proper divisors (56133792).

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

19103040 is a wasteful number, since it uses less digits than its factorization.

19103040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 19103040 is about 4370.7024607035. The cubic root of 19103040 is about 267.3216676121.

It can be divided in two parts, 1910 and 3040, that added together give a triangular number (4950 = T₉₉).

The spelling of 19103040 in words is "nineteen million, one hundred three thousand, forty".