40090600 has 48 divisors (see below), whose sum is σ = 101689920. Its totient is φ = 14577600.

The previous prime is 40090571. The next prime is 40090601. The reversal of 40090600 is 609004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40090601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6912 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (2118540).

Almost surely, 2^40090600 is an apocalyptic number.

40090600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40090600 is an abundant number, since it is smaller than the sum of its proper divisors (61599320).

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

40090600 is a wasteful number, since it uses less digits than its factorization.

40090600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18250 (or 18241 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 40090600 is about 6331.7138280248. The cubic root of 40090600 is about 342.2532010024.

Adding to 40090600 its reverse (609004), we get a palindrome (40699604).

The spelling of 40090600 in words is "forty million, ninety thousand, six hundred".