19148380 has 12 divisors (see below), whose sum is σ = 40211640. Its totient is φ = 7659344.

The previous prime is 19148347. The next prime is 19148383. The reversal of 19148380 is 8384191.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19148383) by changing a digit.

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, 478690 + ... + 478729.

It is an arithmetic number, because the mean of its divisors is an integer number (3350970).

Almost surely, 2^19148380 is an apocalyptic number.

19148380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19148380 is an abundant number, since it is smaller than the sum of its proper divisors (21063260).

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

19148380 is a wasteful number, since it uses less digits than its factorization.

19148380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957428 (or 957426 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 19148380 is about 4375.8861959608. The cubic root of 19148380 is about 267.5329915346.

The spelling of 19148380 in words is "nineteen million, one hundred forty-eight thousand, three hundred eighty".