42546380 has 12 divisors (see below), whose sum is σ = 89347440. Its totient is φ = 17018544.

The previous prime is 42546373. The next prime is 42546401. The reversal of 42546380 is 8364524.

It is a super-2 number, since 2×42546380² = 3620388902208800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 1063640 + ... + 1063679.

It is an arithmetic number, because the mean of its divisors is an integer number (7445620).

Almost surely, 2^42546380 is an apocalyptic number.

It is an amenable number.

42546380 is an abundant number, since it is smaller than the sum of its proper divisors (46801060).

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

42546380 is a wasteful number, since it uses less digits than its factorization.

42546380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127328 (or 2127326 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 42546380 is about 6522.7586188667. The cubic root of 42546380 is about 349.1035015663.

The spelling of 42546380 in words is "forty-two million, five hundred forty-six thousand, three hundred eighty".