40154019 has 8 divisors (see below), whose sum is σ = 54549072. Its totient is φ = 26264160.

The previous prime is 40154003. The next prime is 40154029. The reversal of 40154019 is 91045104.

40154019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40154019 - 2⁴ = 40154003 is a prime.

It is a super-2 number, since 2×40154019² = 3224690483704722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40154019.

It is not an unprimeable number, because it can be changed into a prime (40154029) 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 7 ways as a sum of consecutive naturals, for example, 126112 + ... + 126429.

It is an arithmetic number, because the mean of its divisors is an integer number (6818634).

Almost surely, 2^40154019 is an apocalyptic number.

40154019 is a deficient number, since it is larger than the sum of its proper divisors (14395053).

40154019 is a wasteful number, since it uses less digits than its factorization.

40154019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252597.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 40154019 is about 6336.7198928152. The cubic root of 40154019 is about 342.4335751269.

The spelling of 40154019 in words is "forty million, one hundred fifty-four thousand, nineteen".