42546424 has 8 divisors (see below), whose sum is σ = 79774560. Its totient is φ = 21273208.

The previous prime is 42546419. The next prime is 42546443. The reversal of 42546424 is 42464524.

It is a happy number.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 2659144 + ... + 2659159.

It is an arithmetic number, because the mean of its divisors is an integer number (9971820).

Almost surely, 2^42546424 is an apocalyptic number.

It is an amenable number.

42546424 is a deficient number, since it is larger than the sum of its proper divisors (37228136).

42546424 is a wasteful number, since it uses less digits than its factorization.

42546424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318309 (or 5318305 counting only the distinct ones).

The product of its digits is 30720, while the sum is 31.

The square root of 42546424 is about 6522.7619916719. The cubic root of 42546424 is about 349.1036219098.

The spelling of 42546424 in words is "forty-two million, five hundred forty-six thousand, four hundred twenty-four".