40416387 has 8 divisors (see below), whose sum is σ = 58787520. Its totient is φ = 24494760.

The previous prime is 40416373. The next prime is 40416403. The reversal of 40416387 is 78361404.

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

It is not a de Polignac number, because 40416387 - 2¹⁸ = 40154243 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1224739 = 40416387 / (4 + 0 + 4 + 1 + 6 + 3 + 8 + 7).

It is not an unprimeable number, because it can be changed into a prime (40416347) 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 in 7 ways as a sum of consecutive naturals, for example, 612337 + ... + 612402.

It is an arithmetic number, because the mean of its divisors is an integer number (7348440).

Almost surely, 2^40416387 is an apocalyptic number.

40416387 is a deficient number, since it is larger than the sum of its proper divisors (18371133).

40416387 is a wasteful number, since it uses less digits than its factorization.

40416387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224753.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 40416387 is about 6357.3883788864. The cubic root of 40416387 is about 343.1777815692.

The spelling of 40416387 in words is "forty million, four hundred sixteen thousand, three hundred eighty-seven".