38400329 has 4 divisors (see below), whose sum is σ = 41891280. Its totient is φ = 34909380.

The previous prime is 38400319. The next prime is 38400343. The reversal of 38400329 is 92300483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38400329 - 2⁸ = 38400073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38400319) 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, 1745459 + ... + 1745480.

It is an arithmetic number, because the mean of its divisors is an integer number (10472820).

Almost surely, 2^38400329 is an apocalyptic number.

It is an amenable number.

38400329 is a deficient number, since it is larger than the sum of its proper divisors (3490951).

38400329 is a wasteful number, since it uses less digits than its factorization.

38400329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490950.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 38400329 is about 6196.7998999484. The cubic root of 38400329 is about 337.3740296226.

The spelling of 38400329 in words is "thirty-eight million, four hundred thousand, three hundred twenty-nine".