40424343 has 16 divisors (see below), whose sum is σ = 58058880. Its totient is φ = 24935904.

The previous prime is 40424339. The next prime is 40424353. The reversal of 40424343 is 34342404.

It is a happy number.

It is not a de Polignac number, because 40424343 - 2² = 40424339 is a prime.

40424343 is a modest number, since divided by 4343 gives 4042 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424323) 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, 5796 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (3628680).

Almost surely, 2^40424343 is an apocalyptic number.

40424343 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40424343 is a deficient number, since it is larger than the sum of its proper divisors (17634537).

40424343 is a wasteful number, since it uses less digits than its factorization.

40424343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16558.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 40424343 is about 6358.0140767381. The cubic root of 40424343 is about 343.2002983708.

Adding to 40424343 its reverse (34342404), we get a palindrome (74766747).

It can be divided in two parts, 4042 and 4343, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 40424343 in words is "forty million, four hundred twenty-four thousand, three hundred forty-three".