40146338 has 4 divisors (see below), whose sum is σ = 60219510. Its totient is φ = 20073168.

The previous prime is 40146331. The next prime is 40146347. The reversal of 40146338 is 83364104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34304449 + 5841889 = 5857^2 + 2417^2 .

It is a super-2 number, since 2×40146338² = 3223456909620488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40146338.

It is not an unprimeable number, because it can be changed into a prime (40146331) 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 as a sum of consecutive naturals, namely, 10036583 + ... + 10036586.

Almost surely, 2^40146338 is an apocalyptic number.

40146338 is a deficient number, since it is larger than the sum of its proper divisors (20073172).

40146338 is a wasteful number, since it uses less digits than its factorization.

40146338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20073171.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 40146338 is about 6336.1137931701. The cubic root of 40146338 is about 342.4117392054.

The spelling of 40146338 in words is "forty million, one hundred forty-six thousand, three hundred thirty-eight".