42520302 has 80 divisors (see below), whose sum is σ = 105380352. Its totient is φ = 12707280.

The previous prime is 42520273. The next prime is 42520327. The reversal of 42520302 is 20302524.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 190563 + ... + 190785.

Almost surely, 2^42520302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42520302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52690176).

42520302 is an abundant number, since it is smaller than the sum of its proper divisors (62860050).

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

42520302 is a wasteful number, since it uses less digits than its factorization.

42520302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 42520302 is about 6520.7593116139. The cubic root of 42520302 is about 349.0321615230.

Adding to 42520302 its reverse (20302524), we get a palindrome (62822826).

The spelling of 42520302 in words is "forty-two million, five hundred twenty thousand, three hundred two".