19429454 has 12 divisors (see below), whose sum is σ = 32034912. Its totient is φ = 8831460.

The previous prime is 19429441. The next prime is 19429469. The reversal of 19429454 is 45492491.

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 5 ways as a sum of consecutive naturals, for example, 39902 + ... + 40385.

It is an arithmetic number, because the mean of its divisors is an integer number (2669576).

Almost surely, 2^19429454 is an apocalyptic number.

19429454 is a deficient number, since it is larger than the sum of its proper divisors (12605458).

19429454 is a wasteful number, since it uses less digits than its factorization.

19429454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80311 (or 80300 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 19429454 is about 4407.8854340829. The cubic root of 19429454 is about 268.8356536790.

The spelling of 19429454 in words is "nineteen million, four hundred twenty-nine thousand, four hundred fifty-four".