40395000 has 80 divisors (see below), whose sum is σ = 126240840. Its totient is φ = 10768000.

The previous prime is 40394987. The next prime is 40395011. The reversal of 40395000 is 59304.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 13654 + ... + 16346.

Almost surely, 2^40395000 is an apocalyptic number.

40395000 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 40395000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63120420).

40395000 is an abundant number, since it is smaller than the sum of its proper divisors (85845840).

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

40395000 is a wasteful number, since it uses less digits than its factorization.

40395000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 40395000 is about 6355.7060976732. The cubic root of 40395000 is about 343.1172381548.

The spelling of 40395000 in words is "forty million, three hundred ninety-five thousand".