42045504 has 28 divisors (see below), whose sum is σ = 111245904. Its totient is φ = 14015104.

The previous prime is 42045491. The next prime is 42045511. The reversal of 42045504 is 40554024.

It is a super-2 number, since 2×42045504² = 3535648813228032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109302 + ... + 109685.

It is an arithmetic number, because the mean of its divisors is an integer number (3973068).

Almost surely, 2^42045504 is an apocalyptic number.

It is an amenable number.

42045504 is an abundant number, since it is smaller than the sum of its proper divisors (69200400).

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

42045504 is a wasteful number, since it uses less digits than its factorization.

42045504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219002 (or 218992 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 42045504 is about 6484.2504578401. The cubic root of 42045504 is about 347.7281533995.

Adding to 42045504 its reverse (40554024), we get a palindrome (82599528).

The spelling of 42045504 in words is "forty-two million, forty-five thousand, five hundred four".