203140442 has 8 divisors (see below), whose sum is σ = 308568000. Its totient is φ = 100284444.

The previous prime is 203140417. The next prime is 203140459. The reversal of 203140442 is 244041302.

203140442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642692 + ... + 643007.

It is an arithmetic number, because the mean of its divisors is an integer number (38571000).

Almost surely, 2^203140442 is an apocalyptic number.

203140442 is a deficient number, since it is larger than the sum of its proper divisors (105427558).

203140442 is a wasteful number, since it uses less digits than its factorization.

203140442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285780.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 203140442 is about 14252.7345446409. The cubic root of 203140442 is about 587.8485676800.

Adding to 203140442 its reverse (244041302), we get a palindrome (447181744).

The spelling of 203140442 in words is "two hundred three million, one hundred forty thousand, four hundred forty-two".