40144015 has 8 divisors (see below), whose sum is σ = 48209040. Its totient is φ = 32091072.

The previous prime is 40144003. The next prime is 40144019. The reversal of 40144015 is 51044104.

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 40144015 - 2¹¹ = 40141967 is a prime.

It is a super-2 number, since 2×40144015² = 3223083880640450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40143983 and 40144001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144019) 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, 7867 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (6026130).

Almost surely, 2^40144015 is an apocalyptic number.

40144015 is a deficient number, since it is larger than the sum of its proper divisors (8065025).

40144015 is a wasteful number, since it uses less digits than its factorization.

40144015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40144015 is about 6335.9304762600. The cubic root of 40144015 is about 342.4051347192.

Adding to 40144015 its reverse (51044104), we get a palindrome (91188119).

The spelling of 40144015 in words is "forty million, one hundred forty-four thousand, fifteen".