42518030 has 32 divisors (see below), whose sum is σ = 80232768. Its totient is φ = 16192000.

The previous prime is 42518027. The next prime is 42518039. The reversal of 42518030 is 3081524.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 42517987 and 42518005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42518039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92000 + ... + 92460.

It is an arithmetic number, because the mean of its divisors is an integer number (2507274).

Almost surely, 2^42518030 is an apocalyptic number.

42518030 is a deficient number, since it is larger than the sum of its proper divisors (37714738).

42518030 is a wasteful number, since it uses less digits than its factorization.

42518030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42518030 is about 6520.5850964465. The cubic root of 42518030 is about 349.0259447657.

Adding to 42518030 its reverse (3081524), we get a palindrome (45599554).

The spelling of 42518030 in words is "forty-two million, five hundred eighteen thousand, thirty".