19930436 has 24 divisors (see below), whose sum is σ = 35952000. Its totient is φ = 9663264.

The previous prime is 19930433. The next prime is 19930439. The reversal of 19930436 is 63403991.

It is an interprime number because it is at equal distance from previous prime (19930433) and next prime (19930439).

It is a junction number, because it is equal to n+sod(n) for n = 19930396 and 19930405.

It is not an unprimeable number, because it can be changed into a prime (19930433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18110 + ... + 19178.

It is an arithmetic number, because the mean of its divisors is an integer number (1498000).

Almost surely, 2^19930436 is an apocalyptic number.

It is an amenable number.

19930436 is a deficient number, since it is larger than the sum of its proper divisors (16021564).

19930436 is a wasteful number, since it uses less digits than its factorization.

19930436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1209 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 19930436 is about 4464.3516886554. The cubic root of 19930436 is about 271.1266865000.

The spelling of 19930436 in words is "nineteen million, nine hundred thirty thousand, four hundred thirty-six".