40430338 has 8 divisors (see below), whose sum is σ = 65310588. Its totient is φ = 18660144.

The previous prime is 40430287. The next prime is 40430339. The reversal of 40430338 is 83303404.

It can be written as a sum of positive squares in 2 ways, for example, as 38900169 + 1530169 = 6237^2 + 1237^2 .

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

It is a super-2 number, since 2×40430338² = 3269224461588488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40430339) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 777481 + ... + 777532.

Almost surely, 2^40430338 is an apocalyptic number.

40430338 is a deficient number, since it is larger than the sum of its proper divisors (24880250).

40430338 is a wasteful number, since it uses less digits than its factorization.

40430338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555028.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 40430338 is about 6358.4855115035. The cubic root of 40430338 is about 343.2172632648.

The spelling of 40430338 in words is "forty million, four hundred thirty thousand, three hundred thirty-eight".