40343535 has 16 divisors (see below), whose sum is σ = 71722080. Its totient is φ = 21516480.

The previous prime is 40343521. The next prime is 40343543. The reversal of 40343535 is 53534304.

It is a happy number.

It is not a de Polignac number, because 40343535 - 2⁴ = 40343519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40343499 and 40343508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149286 + ... + 149555.

It is an arithmetic number, because the mean of its divisors is an integer number (4482630).

Almost surely, 2^40343535 is an apocalyptic number.

40343535 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40343535 is a deficient number, since it is larger than the sum of its proper divisors (31378545).

40343535 is a wasteful number, since it uses less digits than its factorization.

40343535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298855 (or 298849 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 40343535 is about 6351.6560832589. The cubic root of 40343535 is about 342.9714607630.

Adding to 40343535 its reverse (53534304), we get a palindrome (93877839).

It can be divided in two parts, 4034 and 3535, that added together give a square (7569 = 87²).

The spelling of 40343535 in words is "forty million, three hundred forty-three thousand, five hundred thirty-five".