200401940 has 12 divisors (see below), whose sum is σ = 420844116. Its totient is φ = 80160768.

The previous prime is 200401939. The next prime is 200401979. The reversal of 200401940 is 49104002.

200401940 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 73479184 + 126922756 = 8572^2 + 11266^2 .

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: 10020097 = 200401940 / (2 + 0 + 0 + 4 + 0 + 1 + 9 + 4 + 0).

It is a congruent number.

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, 5010029 + ... + 5010068.

It is an arithmetic number, because the mean of its divisors is an integer number (35070343).

Almost surely, 2^200401940 is an apocalyptic number.

200401940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200401940 is an abundant number, since it is smaller than the sum of its proper divisors (220442176).

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

200401940 is a wasteful number, since it uses less digits than its factorization.

200401940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10020106 (or 10020104 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 200401940 is about 14156.3392160544. The cubic root of 200401940 is about 585.1950453918.

Adding to 200401940 its reverse (49104002), we get a palindrome (249505942).

The spelling of 200401940 in words is "two hundred million, four hundred one thousand, nine hundred forty".