40479653 has 4 divisors (see below), whose sum is σ = 40585728. Its totient is φ = 40373580.

The previous prime is 40479619. The next prime is 40479667. The reversal of 40479653 is 35697404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40479653 - 2⁶ = 40479589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40479053) 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, 52463 + ... + 53228.

It is an arithmetic number, because the mean of its divisors is an integer number (10146432).

Almost surely, 2^40479653 is an apocalyptic number.

It is an amenable number.

40479653 is a deficient number, since it is larger than the sum of its proper divisors (106075).

40479653 is a wasteful number, since it uses less digits than its factorization.

40479653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106074.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 40479653 is about 6362.3622185474. The cubic root of 40479653 is about 343.3567532542.

The spelling of 40479653 in words is "forty million, four hundred seventy-nine thousand, six hundred fifty-three".