42545332 has 12 divisors (see below), whose sum is σ = 78373120. Its totient is φ = 20153016.

The previous prime is 42545297. The next prime is 42545357. The reversal of 42545332 is 23354524.

It is a self number, because there is not a number n which added to its sum of digits gives 42545332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279828 + ... + 279979.

Almost surely, 2^42545332 is an apocalyptic number.

It is an amenable number.

42545332 is a deficient number, since it is larger than the sum of its proper divisors (35827788).

42545332 is a wasteful number, since it uses less digits than its factorization.

42545332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559830 (or 559828 counting only the distinct ones).

The product of its digits is 14400, while the sum is 28.

The square root of 42545332 is about 6522.6782842633. The cubic root of 42545332 is about 349.1006351769.

Adding to 42545332 its reverse (23354524), we get a palindrome (65899856).

It can be divided in two parts, 4 and 2545332, that multiplied together give a triangular number (10181328 = T₄₅₁₂).

The spelling of 42545332 in words is "forty-two million, five hundred forty-five thousand, three hundred thirty-two".