42415320 has 128 divisors (see below), whose sum is σ = 134447040. Its totient is φ = 10690560.

The previous prime is 42415319. The next prime is 42415327. The reversal of 42415320 is 2351424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42415327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181924 + ... + 182156.

Almost surely, 2^42415320 is an apocalyptic number.

42415320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42415320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67223520).

42415320 is an abundant number, since it is smaller than the sum of its proper divisors (92031720).

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

42415320 is a wasteful number, since it uses less digits than its factorization.

42415320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42415320 is about 6512.7045073456. The cubic root of 42415320 is about 348.7446730343.

Adding to 42415320 its reverse (2351424), we get a palindrome (44766744).

The spelling of 42415320 in words is "forty-two million, four hundred fifteen thousand, three hundred twenty".