40144413 has 8 divisors (see below), whose sum is σ = 54770848. Its totient is φ = 26140464.

The previous prime is 40144339. The next prime is 40144417. The reversal of 40144413 is 31444104.

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

It is not a de Polignac number, because 40144413 - 2¹⁴ = 40128029 is a prime.

It is a super-2 number, since 2×40144413² = 3223147790229138, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40144413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144417) 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, 155470 + ... + 155727.

It is an arithmetic number, because the mean of its divisors is an integer number (6846356).

Almost surely, 2^40144413 is an apocalyptic number.

40144413 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

40144413 is a deficient number, since it is larger than the sum of its proper divisors (14626435).

40144413 is a wasteful number, since it uses less digits than its factorization.

40144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311243.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40144413 is about 6335.9618843551. The cubic root of 40144413 is about 342.4062662850.

Adding to 40144413 its reverse (31444104), we get a palindrome (71588517).

It can be divided in two parts, 40 and 144413, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 40144413 in words is "forty million, one hundred forty-four thousand, four hundred thirteen".