40481013 has 8 divisors (see below), whose sum is σ = 55836000. Its totient is φ = 26056688.

The previous prime is 40480991. The next prime is 40481033. The reversal of 40481013 is 31018404.

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

It is a cyclic number.

It is not a de Polignac number, because 40481013 - 2⁶ = 40480949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40481033) 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, 232563 + ... + 232736.

It is an arithmetic number, because the mean of its divisors is an integer number (6979500).

Almost surely, 2^40481013 is an apocalyptic number.

It is an amenable number.

40481013 is a deficient number, since it is larger than the sum of its proper divisors (15354987).

40481013 is a wasteful number, since it uses less digits than its factorization.

40481013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465331.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 40481013 is about 6362.4690961921. The cubic root of 40481013 is about 343.3605984778.

Adding to 40481013 its reverse (31018404), we get a palindrome (71499417).

The spelling of 40481013 in words is "forty million, four hundred eighty-one thousand, thirteen".