438025009 has 8 divisors (see below), whose sum is σ = 478752768. Its totient is φ = 398959680.

The previous prime is 438024997. The next prime is 438025013. The reversal of 438025009 is 900520834.

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 438025009 - 2¹⁵ = 437992241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438025109) 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, 415057 + ... + 416110.

It is an arithmetic number, because the mean of its divisors is an integer number (59844096).

Almost surely, 2^438025009 is an apocalyptic number.

It is an amenable number.

438025009 is a deficient number, since it is larger than the sum of its proper divisors (40727759).

438025009 is a wasteful number, since it uses less digits than its factorization.

438025009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831215.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 438025009 is about 20929.0470160492. The cubic root of 438025009 is about 759.4507856849.

The spelling of 438025009 in words is "four hundred thirty-eight million, twenty-five thousand, nine".