42511104 has 54 divisors (see below), whose sum is σ = 122576636. Its totient is φ = 14169600.

The previous prime is 42511103. The next prime is 42511121. The reversal of 42511104 is 40111524.

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

It is not an unprimeable number, because it can be changed into a prime (42511103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6922 + ... + 11529.

Almost surely, 2^42511104 is an apocalyptic number.

It is an amenable number.

42511104 is an abundant number, since it is smaller than the sum of its proper divisors (80065532).

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

42511104 is a wasteful number, since it uses less digits than its factorization.

42511104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18473 (or 18456 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 42511104 is about 6520.0539875065. The cubic root of 42511104 is about 349.0069921397.

Adding to 42511104 its reverse (40111524), we get a palindrome (82622628).

The spelling of 42511104 in words is "forty-two million, five hundred eleven thousand, one hundred four".