40306282 has 4 divisors (see below), whose sum is σ = 60459426. Its totient is φ = 20153140.

The previous prime is 40306267. The next prime is 40306289. The reversal of 40306282 is 28260304.

It is a happy number.

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., 35892081 + 4414201 = 5991^2 + 2101^2 .

It is not an unprimeable number, because it can be changed into a prime (40306289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076569 + ... + 10076572.

Almost surely, 2^40306282 is an apocalyptic number.

40306282 is a deficient number, since it is larger than the sum of its proper divisors (20153144).

40306282 is a wasteful number, since it uses less digits than its factorization.

40306282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20153143.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 40306282 is about 6348.7228636947. The cubic root of 40306282 is about 342.8658622617.

Adding to 40306282 its reverse (28260304), we get a palindrome (68566586).

The spelling of 40306282 in words is "forty million, three hundred six thousand, two hundred eighty-two".