40340000 has 60 divisors (see below), whose sum is σ = 99291654. Its totient is φ = 16128000.

The previous prime is 40339987. The next prime is 40340017. The reversal of 40340000 is 4304.

It can be written as a sum of positive squares in 5 ways, for example, as 3519376 + 36820624 = 1876^2 + 6068^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18992 + ... + 21008.

Almost surely, 2^40340000 is an apocalyptic number.

40340000 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 40340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49645827).

40340000 is an abundant number, since it is smaller than the sum of its proper divisors (58951654).

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

40340000 is an equidigital number, since it uses as much as digits as its factorization.

40340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 40340000 is about 6351.3778032802. The cubic root of 40340000 is about 342.9614431354.

Adding to 40340000 its reverse (4304), we get a palindrome (40344304).

The spelling of 40340000 in words is "forty million, three hundred forty thousand".