42495481 has 8 divisors (see below), whose sum is σ = 49696064. Its totient is φ = 35577360.

The previous prime is 42495449. The next prime is 42495491. The reversal of 42495481 is 18459424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42495481 - 2⁵ = 42495449 is a prime.

It is a super-2 number, since 2×42495481² = 3611731810842722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42495481.

It is not an unprimeable number, because it can be changed into a prime (42495491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70290 + ... + 70891.

It is an arithmetic number, because the mean of its divisors is an integer number (6212008).

Almost surely, 2^42495481 is an apocalyptic number.

It is an amenable number.

42495481 is a deficient number, since it is larger than the sum of its proper divisors (7200583).

42495481 is a wasteful number, since it uses less digits than its factorization.

42495481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141231.

The product of its digits is 46080, while the sum is 37.

The square root of 42495481 is about 6518.8558045105. The cubic root of 42495481 is about 348.9642330814.

It can be divided in two parts, 4249 and 5481, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 42495481 in words is "forty-two million, four hundred ninety-five thousand, four hundred eighty-one".