40345282 has 4 divisors (see below), whose sum is σ = 60517926. Its totient is φ = 20172640.

The previous prime is 40345273. The next prime is 40345297. The reversal of 40345282 is 28254304.

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., 35509681 + 4835601 = 5959^2 + 2199^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40345282.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10086319 + ... + 10086322.

Almost surely, 2^40345282 is an apocalyptic number.

40345282 is a deficient number, since it is larger than the sum of its proper divisors (20172644).

40345282 is a wasteful number, since it uses less digits than its factorization.

40345282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20172643.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 40345282 is about 6351.7936049592. The cubic root of 40345282 is about 342.9764112670.

Adding to 40345282 its reverse (28254304), we get a palindrome (68599586).

It can be divided in two parts, 4034 and 5282, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 40345282 in words is "forty million, three hundred forty-five thousand, two hundred eighty-two".