19740204 has 72 divisors (see below), whose sum is σ = 55211520. Its totient is φ = 5896800.

The previous prime is 19740199. The next prime is 19740209. The reversal of 19740204 is 40204791.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19740199) and next prime (19740209).

It is not an unprimeable number, because it can be changed into a prime (19740209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30969 + ... + 31599.

Almost surely, 2^19740204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19740204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27605760).

19740204 is an abundant number, since it is smaller than the sum of its proper divisors (35471316).

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

19740204 is a wasteful number, since it uses less digits than its factorization.

19740204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 19740204 is about 4442.9949358513. The cubic root of 19740204 is about 270.2613108032.

Adding to 19740204 its reverse (40204791), we get a palindrome (59944995).

It can be divided in two parts, 197 and 40204, that added together give a square (40401 = 201²).

The spelling of 19740204 in words is "nineteen million, seven hundred forty thousand, two hundred four".