19454012 has 18 divisors (see below), whose sum is σ = 35265048. Its totient is φ = 9389968.

The previous prime is 19454009. The next prime is 19454051. The reversal of 19454012 is 21045491.

It is a super-2 number, since 2×19454012² = 756917165792288, which contains 22 as substring.

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, 473 + ... + 6255.

Almost surely, 2^19454012 is an apocalyptic number.

It is an amenable number.

19454012 is a deficient number, since it is larger than the sum of its proper divisors (15811036).

19454012 is a wasteful number, since it uses less digits than its factorization.

19454012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845 (or 5814 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 19454012 is about 4410.6702438518. The cubic root of 19454012 is about 268.9488715862.

The spelling of 19454012 in words is "nineteen million, four hundred fifty-four thousand, twelve".