399038465 has 8 divisors (see below), whose sum is σ = 547252800. Its totient is φ = 273626352.

The previous prime is 399038461. The next prime is 399038473. The reversal of 399038465 is 564830993.

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 399038465 - 2² = 399038461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399038461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5700515 + ... + 5700584.

It is an arithmetic number, because the mean of its divisors is an integer number (68406600).

Almost surely, 2^399038465 is an apocalyptic number.

399038465 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

399038465 is a deficient number, since it is larger than the sum of its proper divisors (148214335).

399038465 is a wasteful number, since it uses less digits than its factorization.

399038465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401111.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 399038465 is about 19975.9471615240. The cubic root of 399038465 is about 736.2154384922.

The spelling of 399038465 in words is "three hundred ninety-nine million, thirty-eight thousand, four hundred sixty-five".