40323400 has 72 divisors (see below), whose sum is σ = 101603430. Its totient is φ = 14876160.

The previous prime is 40323331. The next prime is 40323421. The reversal of 40323400 is 432304.

It can be written as a sum of positive squares in 9 ways, for example, as 708964 + 39614436 = 842^2 + 6294^2 .

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 33204 + ... + 34396.

Almost surely, 2^40323400 is an apocalyptic number.

40323400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40323400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50801715).

40323400 is an abundant number, since it is smaller than the sum of its proper divisors (61280030).

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

40323400 is a wasteful number, since it uses less digits than its factorization.

40323400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40323400 is about 6350.0708657463. The cubic root of 40323400 is about 342.9143935481.

Adding to 40323400 its reverse (432304), we get a palindrome (40755704).

The spelling of 40323400 in words is "forty million, three hundred twenty-three thousand, four hundred".