42545754 has 12 divisors (see below), whose sum is σ = 92182506. Its totient is φ = 14181912.

The previous prime is 42545753. The next prime is 42545821. The reversal of 42545754 is 45754524.

It is a happy number.

42545754 is a `hidden beast` number, since 42 + 545 + 75 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36180225 + 6365529 = 6015^2 + 2523^2 .

It is a super-4 number, since 4×42545754⁴ (a number of 32 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42545753) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1181809 + ... + 1181844.

Almost surely, 2^42545754 is an apocalyptic number.

42545754 is an abundant number, since it is smaller than the sum of its proper divisors (49636752).

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

42545754 is a wasteful number, since it uses less digits than its factorization.

42545754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363661 (or 2363658 counting only the distinct ones).

The product of its digits is 112000, while the sum is 36.

The square root of 42545754 is about 6522.7106328581. The cubic root of 42545754 is about 349.1017893966.

The spelling of 42545754 in words is "forty-two million, five hundred forty-five thousand, seven hundred fifty-four".