19942512 has 20 divisors (see below), whose sum is σ = 51518280. Its totient is φ = 6647488.

The previous prime is 19942511. The next prime is 19942529. The reversal of 19942512 is 21524991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19942511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207687 + ... + 207782.

It is an arithmetic number, because the mean of its divisors is an integer number (2575914).

Almost surely, 2^19942512 is an apocalyptic number.

19942512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19942512 is an abundant number, since it is smaller than the sum of its proper divisors (31575768).

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

19942512 is a wasteful number, since it uses less digits than its factorization.

19942512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415480 (or 415474 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 19942512 is about 4465.7039758587. The cubic root of 19942512 is about 271.1814346721.

The spelling of 19942512 in words is "nineteen million, nine hundred forty-two thousand, five hundred twelve".