38400459 has 4 divisors (see below), whose sum is σ = 51200616. Its totient is φ = 25600304.

The previous prime is 38400443. The next prime is 38400491. The reversal of 38400459 is 95400483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95400483 = 3 ⋅31800161.

It is a cyclic number.

It is not a de Polignac number, because 38400459 - 2⁴ = 38400443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38600459) 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, 6400074 + ... + 6400079.

It is an arithmetic number, because the mean of its divisors is an integer number (12800154).

Almost surely, 2^38400459 is an apocalyptic number.

38400459 is a deficient number, since it is larger than the sum of its proper divisors (12800157).

38400459 is a wasteful number, since it uses less digits than its factorization.

38400459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12800156.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 38400459 is about 6196.8103892244. The cubic root of 38400459 is about 337.3744103362.

The spelling of 38400459 in words is "thirty-eight million, four hundred thousand, four hundred fifty-nine".