38520429 has 8 divisors (see below), whose sum is σ = 54063840. Its totient is φ = 24328656.

The previous prime is 38520413. The next prime is 38520437. The reversal of 38520429 is 92402583.

It is a happy number.

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

It is not a de Polignac number, because 38520429 - 2⁴ = 38520413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38520429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38520529) 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, 337842 + ... + 337955.

It is an arithmetic number, because the mean of its divisors is an integer number (6757980).

Almost surely, 2^38520429 is an apocalyptic number.

It is an amenable number.

38520429 is a deficient number, since it is larger than the sum of its proper divisors (15543411).

38520429 is a wasteful number, since it uses less digits than its factorization.

38520429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675819.

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

The square root of 38520429 is about 6206.4828204064. The cubic root of 38520429 is about 337.7253847069.

The spelling of 38520429 in words is "thirty-eight million, five hundred twenty thousand, four hundred twenty-nine".