42515322 has 16 divisors (see below), whose sum is σ = 87773952. Its totient is φ = 13714560.

The previous prime is 42515311. The next prime is 42515329. The reversal of 42515322 is 22351524.

It is a junction number, because it is equal to n+sod(n) for n = 42515292 and 42515301.

It is not an unprimeable number, because it can be changed into a prime (42515329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114103 + ... + 114474.

It is an arithmetic number, because the mean of its divisors is an integer number (5485872).

Almost surely, 2^42515322 is an apocalyptic number.

42515322 is an abundant number, since it is smaller than the sum of its proper divisors (45258630).

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

42515322 is a wasteful number, since it uses less digits than its factorization.

42515322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228613.

The product of its digits is 2400, while the sum is 24.

The square root of 42515322 is about 6520.3774430626. The cubic root of 42515322 is about 349.0185347146.

Adding to 42515322 its reverse (22351524), we get a palindrome (64866846).

The spelling of 42515322 in words is "forty-two million, five hundred fifteen thousand, three hundred twenty-two".