203104240 has 20 divisors (see below), whose sum is σ = 472217544. Its totient is φ = 81241664.

The previous prime is 203104229. The next prime is 203104241. The reversal of 203104240 is 42401302.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203104241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269322 + ... + 1269481.

Almost surely, 2^203104240 is an apocalyptic number.

203104240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203104240 is an abundant number, since it is smaller than the sum of its proper divisors (269113304).

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

203104240 is a wasteful number, since it uses less digits than its factorization.

203104240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538816 (or 2538810 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 203104240 is about 14251.4644861502. The cubic root of 203104240 is about 587.8136451112.

Adding to 203104240 its reverse (42401302), we get a palindrome (245505542).

The spelling of 203104240 in words is "two hundred three million, one hundred four thousand, two hundred forty".