40343000 has 32 divisors (see below), whose sum is σ = 94404960. Its totient is φ = 16136800.

The previous prime is 40342999. The next prime is 40343003. The reversal of 40343000 is 34304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40343003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19172 + ... + 21171.

It is an arithmetic number, because the mean of its divisors is an integer number (2950155).

Almost surely, 2^40343000 is an apocalyptic number.

40343000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40343000 is an abundant number, since it is smaller than the sum of its proper divisors (54061960).

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

40343000 is a wasteful number, since it uses less digits than its factorization.

40343000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40364 (or 40350 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 40343000 is about 6351.6139681187. The cubic root of 40343000 is about 342.9699446957.

Adding to 40343000 its reverse (34304), we get a palindrome (40377304).

The spelling of 40343000 in words is "forty million, three hundred forty-three thousand".