42404424 has 32 divisors (see below), whose sum is σ = 106722240. Its totient is φ = 14040000.

The previous prime is 42404419. The next prime is 42404431. The reversal of 42404424 is 42440424.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 42404394 and 42404403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2227 + ... + 9474.

It is an arithmetic number, because the mean of its divisors is an integer number (3335070).

Almost surely, 2^42404424 is an apocalyptic number.

It is an amenable number.

42404424 is an abundant number, since it is smaller than the sum of its proper divisors (64317816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42404424 is a wasteful number, since it uses less digits than its factorization.

42404424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11861 (or 11857 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 42404424 is about 6511.8679347788. The cubic root of 42404424 is about 348.7148076666.

Adding to 42404424 its reverse (42440424), we get a palindrome (84844848).

The spelling of 42404424 in words is "forty-two million, four hundred four thousand, four hundred twenty-four".