204103390 has 16 divisors (see below), whose sum is σ = 368223408. Its totient is φ = 81455296.

The previous prime is 204103369. The next prime is 204103397. The reversal of 204103390 is 93301402.

It is a super-3 number, since 3×204103390³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204103397) 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, 18607 + ... + 27466.

It is an arithmetic number, because the mean of its divisors is an integer number (23013963).

Almost surely, 2^204103390 is an apocalyptic number.

204103390 is a deficient number, since it is larger than the sum of its proper divisors (164120018).

204103390 is a wasteful number, since it uses less digits than its factorization.

204103390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46523.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 204103390 is about 14286.4757725620. The cubic root of 204103390 is about 588.7759646743.

Adding to 204103390 its reverse (93301402), we get a palindrome (297404792).

The spelling of 204103390 in words is "two hundred four million, one hundred three thousand, three hundred ninety".