203491068 has 72 divisors (see below), whose sum is σ = 537094656. Its totient is φ = 59407200.

The previous prime is 203491039. The next prime is 203491069. The reversal of 203491068 is 860194302.

203491068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203491068² = 82817229511561248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203491069) 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, 912405 + ... + 912627.

It is an arithmetic number, because the mean of its divisors is an integer number (7459648).

Almost surely, 2^203491068 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 203491068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268547328).

203491068 is an abundant number, since it is smaller than the sum of its proper divisors (333603588).

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

203491068 is a wasteful number, since it uses less digits than its factorization.

203491068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 203491068 is about 14265.0295478138. The cubic root of 203491068 is about 588.1865875522.

The spelling of 203491068 in words is "two hundred three million, four hundred ninety-one thousand, sixty-eight".