42344220 has 24 divisors (see below), whose sum is σ = 118563984. Its totient is φ = 11291776.

The previous prime is 42344189. The next prime is 42344231. The reversal of 42344220 is 2244324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352809 + ... + 352928.

It is an arithmetic number, because the mean of its divisors is an integer number (4940166).

Almost surely, 2^42344220 is an apocalyptic number.

It is an amenable number.

42344220 is an abundant number, since it is smaller than the sum of its proper divisors (76219764).

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

42344220 is a wasteful number, since it uses less digits than its factorization.

42344220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705749 (or 705747 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 42344220 is about 6507.2436561112. The cubic root of 42344220 is about 348.5496993468.

Adding to 42344220 its reverse (2244324), we get a palindrome (44588544).

The spelling of 42344220 in words is "forty-two million, three hundred forty-four thousand, two hundred twenty".