19093040 has 80 divisors (see below), whose sum is σ = 47809440. Its totient is φ = 7065600.

The previous prime is 19093033. The next prime is 19093051. The reversal of 19093040 is 4039091.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137291 + ... + 137429.

It is an arithmetic number, because the mean of its divisors is an integer number (597618).

Almost surely, 2^19093040 is an apocalyptic number.

19093040 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 19093040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23904720).

19093040 is an abundant number, since it is smaller than the sum of its proper divisors (28716400).

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

19093040 is a wasteful number, since it uses less digits than its factorization.

19093040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 19093040 is about 4369.5583300833. The cubic root of 19093040 is about 267.2750138986.

The spelling of 19093040 in words is "nineteen million, ninety-three thousand, forty".