40394959 has 8 divisors (see below), whose sum is σ = 44237952. Its totient is φ = 36580440.

The previous prime is 40394947. The next prime is 40394983. The reversal of 40394959 is 95949304.

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

It is a cyclic number.

It is not a de Polignac number, because 40394959 - 2¹⁹ = 39870671 is a prime.

It is a super-2 number, since 2×40394959² = 3263505425223362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40394659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4089 + ... + 9874.

It is an arithmetic number, because the mean of its divisors is an integer number (5529744).

Almost surely, 2^40394959 is an apocalyptic number.

40394959 is a deficient number, since it is larger than the sum of its proper divisors (3842993).

40394959 is a wasteful number, since it uses less digits than its factorization.

40394959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14237.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 40394959 is about 6355.7028722243. The cubic root of 40394959 is about 343.1171220693.

It can be divided in two parts, 4039 and 4959, that added together give a palindrome (8998).

The spelling of 40394959 in words is "forty million, three hundred ninety-four thousand, nine hundred fifty-nine".