40481051 has 4 divisors (see below), whose sum is σ = 43594992. Its totient is φ = 37367112.

The previous prime is 40481033. The next prime is 40481059. The reversal of 40481051 is 15018404.

40481051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40481051 - 2¹⁴ = 40464667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40481059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556951 + ... + 1556976.

It is an arithmetic number, because the mean of its divisors is an integer number (10898748).

Almost surely, 2^40481051 is an apocalyptic number.

40481051 is a deficient number, since it is larger than the sum of its proper divisors (3113941).

40481051 is a wasteful number, since it uses less digits than its factorization.

40481051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113940.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 40481051 is about 6362.4720824535. The cubic root of 40481051 is about 343.3607059166.

Adding to 40481051 its reverse (15018404), we get a palindrome (55499455).

The spelling of 40481051 in words is "forty million, four hundred eighty-one thousand, fifty-one".