19428435 has 24 divisors (see below), whose sum is σ = 36267504. Its totient is φ = 9564480.

The previous prime is 19428427. The next prime is 19428443. The reversal of 19428435 is 53482491.

It is an interprime number because it is at equal distance from previous prime (19428427) and next prime (19428443).

It is not a de Polignac number, because 19428435 - 2³ = 19428427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19428435.

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 23 ways as a sum of consecutive naturals, for example, 16021 + ... + 17190.

It is an arithmetic number, because the mean of its divisors is an integer number (1511146).

Almost surely, 2^19428435 is an apocalyptic number.

19428435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19428435 is a deficient number, since it is larger than the sum of its proper divisors (16839069).

19428435 is a wasteful number, since it uses less digits than its factorization.

19428435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33235 (or 33232 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 19428435 is about 4407.7698442636. The cubic root of 19428435 is about 268.8309537988.

The spelling of 19428435 in words is "nineteen million, four hundred twenty-eight thousand, four hundred thirty-five".