42045032 has 8 divisors (see below), whose sum is σ = 78834450. Its totient is φ = 21022512.

The previous prime is 42045019. The next prime is 42045037. The reversal of 42045032 is 23054024.

It can be written as a sum of positive squares in only one way, i.e., 36409156 + 5635876 = 6034^2 + 2374^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42044995 and 42045013.

It is not an unprimeable number, because it can be changed into a prime (42045037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627807 + ... + 2627822.

Almost surely, 2^42045032 is an apocalyptic number.

It is an amenable number.

42045032 is a deficient number, since it is larger than the sum of its proper divisors (36789418).

42045032 is a wasteful number, since it uses less digits than its factorization.

42045032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255635 (or 5255631 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42045032 is about 6484.2140618582. The cubic root of 42045032 is about 347.7268522037.

Adding to 42045032 its reverse (23054024), we get a palindrome (65099056).

The spelling of 42045032 in words is "forty-two million, forty-five thousand, thirty-two".