40280794 has 8 divisors (see below), whose sum is σ = 60484788. Its totient is φ = 20119200.

The previous prime is 40280791. The next prime is 40280831. The reversal of 40280794 is 49708204.

It is a happy number.

40280794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38900169 + 1380625 = 6237^2 + 1175^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40280791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8107 + ... + 12094.

Almost surely, 2^40280794 is an apocalyptic number.

40280794 is a deficient number, since it is larger than the sum of its proper divisors (20203994).

40280794 is a wasteful number, since it uses less digits than its factorization.

40280794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21200.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 40280794 is about 6346.7152133998. The cubic root of 40280794 is about 342.7935756986.

Adding to 40280794 its reverse (49708204), we get a palindrome (89988998).

The spelling of 40280794 in words is "forty million, two hundred eighty thousand, seven hundred ninety-four".