42513030 has 48 divisors (see below), whose sum is σ = 126326304. Its totient is φ = 9717120.

The previous prime is 42513017. The next prime is 42513067. The reversal of 42513030 is 3031524.

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

It is a junction number, because it is equal to n+sod(n) for n = 42512994 and 42513012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33111 + ... + 34370.

It is an arithmetic number, because the mean of its divisors is an integer number (2631798).

Almost surely, 2^42513030 is an apocalyptic number.

42513030 is an abundant number, since it is smaller than the sum of its proper divisors (83813274).

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

42513030 is a wasteful number, since it uses less digits than its factorization.

42513030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67501 (or 67498 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 42513030 is about 6520.2016839972. The cubic root of 42513030 is about 349.0122627416.

Adding to 42513030 its reverse (3031524), we get a palindrome (45544554).

The spelling of 42513030 in words is "forty-two million, five hundred thirteen thousand, thirty".