19149470 has 8 divisors (see below), whose sum is σ = 34469064. Its totient is φ = 7659784.

The previous prime is 19149457. The next prime is 19149503. The reversal of 19149470 is 7494191.

It is a sphenic number, since it is the product of 3 distinct primes.

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 19149470.

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 3 ways as a sum of consecutive naturals, for example, 957464 + ... + 957483.

It is an arithmetic number, because the mean of its divisors is an integer number (4308633).

Almost surely, 2^19149470 is an apocalyptic number.

19149470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19149470 is a deficient number, since it is larger than the sum of its proper divisors (15319594).

19149470 is a wasteful number, since it uses less digits than its factorization.

19149470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914954.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 19149470 is about 4376.0107403890. The cubic root of 19149470 is about 267.5380677765.

The spelling of 19149470 in words is "nineteen million, one hundred forty-nine thousand, four hundred seventy".