19424145 has 16 divisors (see below), whose sum is σ = 33469632. Its totient is φ = 9562560.

The previous prime is 19424143. The next prime is 19424147. The reversal of 19424145 is 54142491.

It is an interprime number because it is at equal distance from previous prime (19424143) and next prime (19424147).

It is not a de Polignac number, because 19424145 - 2¹ = 19424143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19424143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49611 + ... + 50000.

It is an arithmetic number, because the mean of its divisors is an integer number (2091852).

Almost surely, 2^19424145 is an apocalyptic number.

19424145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19424145 is a deficient number, since it is larger than the sum of its proper divisors (14045487).

19424145 is a wasteful number, since it uses less digits than its factorization.

19424145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99632.

The product of its digits is 5760, while the sum is 30.

The square root of 19424145 is about 4407.2831767428. The cubic root of 19424145 is about 268.8111654544.

The spelling of 19424145 in words is "nineteen million, four hundred twenty-four thousand, one hundred forty-five".