40481653 has 4 divisors (see below), whose sum is σ = 40655628. Its totient is φ = 40307680.

The previous prime is 40481627. The next prime is 40481657. The reversal of 40481653 is 35618404.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10909809 + 29571844 = 3303^2 + 5438^2 .

It is a cyclic number.

It is not a de Polignac number, because 40481653 - 2⁵ = 40481621 is a prime.

It is a super-2 number, since 2×40481653² = 3277528459224818, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40481657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86638 + ... + 87103.

It is an arithmetic number, because the mean of its divisors is an integer number (10163907).

Almost surely, 2^40481653 is an apocalyptic number.

It is an amenable number.

40481653 is a deficient number, since it is larger than the sum of its proper divisors (173975).

40481653 is a wasteful number, since it uses less digits than its factorization.

40481653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173974.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40481653 is about 6362.5193909331. The cubic root of 40481653 is about 343.3624079650.

The spelling of 40481653 in words is "forty million, four hundred eighty-one thousand, six hundred fifty-three".