42452220 has 48 divisors (see below), whose sum is σ = 121772448. Its totient is φ = 11043840.

The previous prime is 42452203. The next prime is 42452231. The reversal of 42452220 is 2225424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6169 + ... + 11088.

It is an arithmetic number, because the mean of its divisors is an integer number (2536926).

Almost surely, 2^42452220 is an apocalyptic number.

It is an amenable number.

42452220 is an abundant number, since it is smaller than the sum of its proper divisors (79320228).

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

42452220 is a wasteful number, since it uses less digits than its factorization.

42452220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17310 (or 17308 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 42452220 is about 6515.5368159500. The cubic root of 42452220 is about 348.8457760356.

Adding to 42452220 its reverse (2225424), we get a palindrome (44677644).

The spelling of 42452220 in words is "forty-two million, four hundred fifty-two thousand, two hundred twenty".