40144265 has 16 divisors (see below), whose sum is σ = 56954880. Its totient is φ = 26577600.

The previous prime is 40144229. The next prime is 40144301. The reversal of 40144265 is 56244104.

It is an interprime number because it is at equal distance from previous prime (40144229) and next prime (40144301).

It is not a de Polignac number, because 40144265 - 2¹⁰ = 40143241 is a prime.

It is a super-2 number, since 2×40144265² = 3223124024780450, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18761 + ... + 20790.

It is an arithmetic number, because the mean of its divisors is an integer number (3559680).

Almost surely, 2^40144265 is an apocalyptic number.

It is an amenable number.

40144265 is a deficient number, since it is larger than the sum of its proper divisors (16810615).

40144265 is a wasteful number, since it uses less digits than its factorization.

40144265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39592.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40144265 is about 6335.9502049811. The cubic root of 40144265 is about 342.4058455026.

Adding to 40144265 its reverse (56244104), we get a palindrome (96388369).

The spelling of 40144265 in words is "forty million, one hundred forty-four thousand, two hundred sixty-five".