200403740 has 12 divisors (see below), whose sum is σ = 420847896. Its totient is φ = 80161488.

The previous prime is 200403733. The next prime is 200403781. The reversal of 200403740 is 47304002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10020187 = 200403740 / (2 + 0 + 0 + 4 + 0 + 3 + 7 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5010074 + ... + 5010113.

It is an arithmetic number, because the mean of its divisors is an integer number (35070658).

Almost surely, 2^200403740 is an apocalyptic number.

200403740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200403740 is an abundant number, since it is smaller than the sum of its proper divisors (220444156).

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

200403740 is a wasteful number, since it uses less digits than its factorization.

200403740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10020196 (or 10020194 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 200403740 is about 14156.4027916699. The cubic root of 200403740 is about 585.1967974506.

Adding to 200403740 its reverse (47304002), we get a palindrome (247707742).

The spelling of 200403740 in words is "two hundred million, four hundred three thousand, seven hundred forty".