19424212 has 6 divisors (see below), whose sum is σ = 33992378. Its totient is φ = 9712104.

The previous prime is 19424203. The next prime is 19424227. The reversal of 19424212 is 21242491.

It can be written as a sum of positive squares in only one way, i.e., 11048976 + 8375236 = 3324^2 + 2894^2 .

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 as a sum of consecutive naturals, namely, 2428023 + ... + 2428030.

Almost surely, 2^19424212 is an apocalyptic number.

It is an amenable number.

19424212 is a deficient number, since it is larger than the sum of its proper divisors (14568166).

19424212 is a wasteful number, since it uses less digits than its factorization.

19424212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856057 (or 4856055 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 19424212 is about 4407.2907777908. The cubic root of 19424212 is about 268.8114745255.

The spelling of 19424212 in words is "nineteen million, four hundred twenty-four thousand, two hundred twelve".