40400200 has 24 divisors (see below), whose sum is σ = 93930930. Its totient is φ = 16160000.

The previous prime is 40400149. The next prime is 40400203. The reversal of 40400200 is 200404.

It can be written as a sum of positive squares in 3 ways, for example, as 39012516 + 1387684 = 6246^2 + 1178^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (40400203) 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, 100801 + ... + 101200.

Almost surely, 2^40400200 is an apocalyptic number.

40400200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40400200 is an abundant number, since it is smaller than the sum of its proper divisors (53530730).

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

40400200 is a wasteful number, since it uses less digits than its factorization.

40400200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202017 (or 202008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 40400200 is about 6356.1151657282. The cubic root of 40400200 is about 343.1319605468.

Adding to 40400200 its reverse (200404), we get a palindrome (40600604).

The spelling of 40400200 in words is "forty million, four hundred thousand, two hundred".