19475040 has 96 divisors (see below), whose sum is σ = 66086496. Its totient is φ = 4792320.

The previous prime is 19475033. The next prime is 19475059. The reversal of 19475040 is 4057491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 19474989 and 19475007.

It is a congruent number.

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, 4680 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (688401).

Almost surely, 2^19475040 is an apocalyptic number.

19475040 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 19475040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33043248).

19475040 is an abundant number, since it is smaller than the sum of its proper divisors (46611456).

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

19475040 is a wasteful number, since it uses less digits than its factorization.

19475040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152 (or 3144 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 19475040 is about 4413.0533647351. The cubic root of 19475040 is about 269.0457397012.

The spelling of 19475040 in words is "nineteen million, four hundred seventy-five thousand, forty".