19124390 has 16 divisors (see below), whose sum is σ = 34477920. Its totient is φ = 7637760.

The previous prime is 19124389. The next prime is 19124401. The reversal of 19124390 is 9342191.

It is a happy number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 8150 + ... + 10230.

It is an arithmetic number, because the mean of its divisors is an integer number (2154870).

Almost surely, 2^19124390 is an apocalyptic number.

19124390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19124390 is a deficient number, since it is larger than the sum of its proper divisors (15353530).

19124390 is a wasteful number, since it uses less digits than its factorization.

19124390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 19124390 is about 4373.1441778199. The cubic root of 19124390 is about 267.4212188304.

The spelling of 19124390 in words is "nineteen million, one hundred twenty-four thousand, three hundred ninety".