19419152 has 20 divisors (see below), whose sum is σ = 37793340. Its totient is φ = 9666048.

The previous prime is 19419143. The next prime is 19419157. The reversal of 19419152 is 25191491.

It can be written as a sum of positive squares in 2 ways, for example, as 12845056 + 6574096 = 3584^2 + 2564^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19419157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124 + ... + 6332.

It is an arithmetic number, because the mean of its divisors is an integer number (1889667).

Almost surely, 2^19419152 is an apocalyptic number.

It is an amenable number.

19419152 is a deficient number, since it is larger than the sum of its proper divisors (18374188).

19419152 is a wasteful number, since it uses less digits than its factorization.

19419152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450 (or 5444 counting only the distinct ones).

The product of its digits is 3240, while the sum is 32.

The square root of 19419152 is about 4406.7166915970. The cubic root of 19419152 is about 268.7881307354.

The spelling of 19419152 in words is "nineteen million, four hundred nineteen thousand, one hundred fifty-two".