40141243 has 16 divisors (see below), whose sum is σ = 43776000. Its totient is φ = 36683712.

The previous prime is 40141237. The next prime is 40141247. The reversal of 40141243 is 34214104.

It is a cyclic number.

It is not a de Polignac number, because 40141243 - 2¹⁷ = 40010171 is a prime.

It is a super-2 number, since 2×40141243² = 3222638779170098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 40141243.

It is not an unprimeable number, because it can be changed into a prime (40141247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70263 + ... + 70831.

It is an arithmetic number, because the mean of its divisors is an integer number (2736000).

Almost surely, 2^40141243 is an apocalyptic number.

40141243 is a deficient number, since it is larger than the sum of its proper divisors (3634757).

40141243 is a wasteful number, since it uses less digits than its factorization.

40141243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40141243 is about 6335.7117200832. The cubic root of 40141243 is about 342.3972533544.

Adding to 40141243 its reverse (34214104), we get a palindrome (74355347).

The spelling of 40141243 in words is "forty million, one hundred forty-one thousand, two hundred forty-three".