19307142 has 24 divisors (see below), whose sum is σ = 41915016. Its totient is φ = 6422976.

The previous prime is 19307131. The next prime is 19307147. The reversal of 19307142 is 24170391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19307147) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14238 + ... + 15534.

It is an arithmetic number, because the mean of its divisors is an integer number (1746459).

Almost surely, 2^19307142 is an apocalyptic number.

19307142 is an abundant number, since it is smaller than the sum of its proper divisors (22607874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19307142 is a wasteful number, since it uses less digits than its factorization.

19307142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 19307142 is about 4393.9893035828. The cubic root of 19307142 is about 268.2703424106.

The spelling of 19307142 in words is "nineteen million, three hundred seven thousand, one hundred forty-two".