40312200 has 48 divisors (see below), whose sum is σ = 124969680. Its totient is φ = 10749760.

The previous prime is 40312193. The next prime is 40312201. The reversal of 40312200 is 221304.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (40312201) 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, 32994 + ... + 34193.

It is an arithmetic number, because the mean of its divisors is an integer number (2603535).

Almost surely, 2^40312200 is an apocalyptic number.

40312200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40312200 is an abundant number, since it is smaller than the sum of its proper divisors (84657480).

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

40312200 is a wasteful number, since it uses less digits than its factorization.

40312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67206 (or 67197 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40312200 is about 6349.1889245793. The cubic root of 40312200 is about 342.8826419527.

Adding to 40312200 its reverse (221304), we get a palindrome (40533504).

The spelling of 40312200 in words is "forty million, three hundred twelve thousand, two hundred".