40339330 has 8 divisors (see below), whose sum is σ = 72610812. Its totient is φ = 16135728.

The previous prime is 40339291. The next prime is 40339331. The reversal of 40339330 is 3393304.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36108081 + 4231249 = 6009^2 + 2057^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40339295 and 40339304.

It is not an unprimeable number, because it can be changed into a prime (40339331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016957 + ... + 2016976.

Almost surely, 2^40339330 is an apocalyptic number.

40339330 is a deficient number, since it is larger than the sum of its proper divisors (32271482).

40339330 is a wasteful number, since it uses less digits than its factorization.

40339330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033940.

The product of its (nonzero) digits is 2916, while the sum is 25.

The square root of 40339330 is about 6351.3250586000. The cubic root of 40339330 is about 342.9595443960.

The spelling of 40339330 in words is "forty million, three hundred thirty-nine thousand, three hundred thirty".