19436742 has 24 divisors (see below), whose sum is σ = 45352944. Its totient is φ = 5980464.

The previous prime is 19436737. The next prime is 19436749. The reversal of 19436742 is 24763491.

It is a junction number, because it is equal to n+sod(n) for n = 19436697 and 19436706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19436749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41298 + ... + 41765.

It is an arithmetic number, because the mean of its divisors is an integer number (1889706).

Almost surely, 2^19436742 is an apocalyptic number.

19436742 is an abundant number, since it is smaller than the sum of its proper divisors (25916202).

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

19436742 is a wasteful number, since it uses less digits than its factorization.

19436742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83084 (or 83081 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 19436742 is about 4408.7120568257. The cubic root of 19436742 is about 268.8692629494.

The spelling of 19436742 in words is "nineteen million, four hundred thirty-six thousand, seven hundred forty-two".