203742468 has 18 divisors (see below), whose sum is σ = 515015774. Its totient is φ = 67914144.

The previous prime is 203742463. The next prime is 203742493. The reversal of 203742468 is 864247302.

It can be written as a sum of positive squares in only one way, i.e., 117029124 + 86713344 = 10818^2 + 9312^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5659513 = 203742468 / (2 + 0 + 3 + 7 + 4 + 2 + 4 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (203742463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2829721 + ... + 2829792.

Almost surely, 2^203742468 is an apocalyptic number.

It is an amenable number.

203742468 is an abundant number, since it is smaller than the sum of its proper divisors (311273306).

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

203742468 is a wasteful number, since it uses less digits than its factorization.

203742468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659523 (or 5659518 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 203742468 is about 14273.8385867292. The cubic root of 203742468 is about 588.4287099816.

The spelling of 203742468 in words is "two hundred three million, seven hundred forty-two thousand, four hundred sixty-eight".