40479321 has 8 divisors (see below), whose sum is σ = 54211104. Its totient is φ = 26866880.

The previous prime is 40479319. The next prime is 40479343. The reversal of 40479321 is 12397404.

It is a happy number.

40479321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40479321 - 2¹ = 40479319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40479371) 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 7 ways as a sum of consecutive naturals, for example, 29040 + ... + 30401.

It is an arithmetic number, because the mean of its divisors is an integer number (6776388).

Almost surely, 2^40479321 is an apocalyptic number.

It is an amenable number.

40479321 is a deficient number, since it is larger than the sum of its proper divisors (13731783).

40479321 is a wasteful number, since it uses less digits than its factorization.

40479321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59671.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40479321 is about 6362.3361275557. The cubic root of 40479321 is about 343.3558145541.

The spelling of 40479321 in words is "forty million, four hundred seventy-nine thousand, three hundred twenty-one".