42404312 has 8 divisors (see below), whose sum is σ = 79508100. Its totient is φ = 21202152.

The previous prime is 42404269. The next prime is 42404359. The reversal of 42404312 is 21340424.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2650262 + ... + 2650277.

Almost surely, 2^42404312 is an apocalyptic number.

It is an amenable number.

42404312 is a deficient number, since it is larger than the sum of its proper divisors (37103788).

42404312 is a wasteful number, since it uses less digits than its factorization.

42404312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300545 (or 5300541 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42404312 is about 6511.8593350901. The cubic root of 42404312 is about 348.7145006539.

Adding to 42404312 its reverse (21340424), we get a palindrome (63744736).

The spelling of 42404312 in words is "forty-two million, four hundred four thousand, three hundred twelve".