19930004 has 6 divisors (see below), whose sum is σ = 34877514. Its totient is φ = 9965000.

The previous prime is 19929997. The next prime is 19930007. The reversal of 19930004 is 40003991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13690000 + 6240004 = 3700^2 + 2498^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19930007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2491247 + ... + 2491254.

It is an arithmetic number, because the mean of its divisors is an integer number (5812919).

Almost surely, 2^19930004 is an apocalyptic number.

It is an amenable number.

19930004 is a deficient number, since it is larger than the sum of its proper divisors (14947510).

19930004 is a wasteful number, since it uses less digits than its factorization.

19930004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982505 (or 4982503 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 19930004 is about 4464.3033051082. The cubic root of 19930004 is about 271.1247275602.

Adding to 19930004 its reverse (40003991), we get a palindrome (59933995).

It can be divided in two parts, 199 and 30004, that added together give a palindrome (30203).

The spelling of 19930004 in words is "nineteen million, nine hundred thirty thousand, four".