40242424 has 8 divisors (see below), whose sum is σ = 75454560. Its totient is φ = 20121208.

The previous prime is 40242407. The next prime is 40242427. The reversal of 40242424 is 42424204.

It is a tau number, because it is divible by the number of its divisors (8).

40242424 is a modest number, since divided by 242424 gives 40 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 40242395 and 40242404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515144 + ... + 2515159.

It is an arithmetic number, because the mean of its divisors is an integer number (9431820).

Almost surely, 2^40242424 is an apocalyptic number.

It is an amenable number.

40242424 is a deficient number, since it is larger than the sum of its proper divisors (35212136).

40242424 is a wasteful number, since it uses less digits than its factorization.

40242424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030309 (or 5030305 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 40242424 is about 6343.6916696826. The cubic root of 40242424 is about 342.6846969439.

Adding to 40242424 its reverse (42424204), we get a palindrome (82666628).

The spelling of 40242424 in words is "forty million, two hundred forty-two thousand, four hundred twenty-four".