42208452 has 120 divisors (see below), whose sum is σ = 129773952. Its totient is φ = 11793600.

The previous prime is 42208451. The next prime is 42208457. The reversal of 42208452 is 25480224.

It is a happy number.

42208452 is a `hidden beast` number, since 4 + 2 + 208 + 452 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42208451) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45877 + ... + 46787.

Almost surely, 2^42208452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42208452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64886976).

42208452 is an abundant number, since it is smaller than the sum of its proper divisors (87565500).

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

42208452 is a wasteful number, since it uses less digits than its factorization.

42208452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 42208452 is about 6496.8032138891. The cubic root of 42208452 is about 348.1767829501.

Adding to 42208452 its reverse (25480224), we get a palindrome (67688676).

The spelling of 42208452 in words is "forty-two million, two hundred eight thousand, four hundred fifty-two".