40398339 has 8 divisors (see below), whose sum is σ = 55320400. Its totient is φ = 26204256.

The previous prime is 40398317. The next prime is 40398353. The reversal of 40398339 is 93389304.

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

It is not a de Polignac number, because 40398339 - 2¹⁷ = 40267267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40398297 and 40398306.

It is not an unprimeable number, because it can be changed into a prime (40398439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181864 + ... + 182085.

It is an arithmetic number, because the mean of its divisors is an integer number (6915050).

Almost surely, 2^40398339 is an apocalyptic number.

40398339 is a deficient number, since it is larger than the sum of its proper divisors (14922061).

40398339 is a wasteful number, since it uses less digits than its factorization.

40398339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363989.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 40398339 is about 6355.9687695897. The cubic root of 40398339 is about 343.1266917744.

The spelling of 40398339 in words is "forty million, three hundred ninety-eight thousand, three hundred thirty-nine".