38620405 has 8 divisors (see below), whose sum is σ = 46629792. Its totient is φ = 30706128.

The previous prime is 38620403. The next prime is 38620409. The reversal of 38620405 is 50402683.

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 38620405 - 2¹ = 38620403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38620403) 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, 22879 + ... + 24508.

It is an arithmetic number, because the mean of its divisors is an integer number (5828724).

Almost surely, 2^38620405 is an apocalyptic number.

It is an amenable number.

38620405 is a deficient number, since it is larger than the sum of its proper divisors (8009387).

38620405 is a wasteful number, since it uses less digits than its factorization.

38620405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47555.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 38620405 is about 6214.5317603179. The cubic root of 38620405 is about 338.0173100153.

The spelling of 38620405 in words is "thirty-eight million, six hundred twenty thousand, four hundred five".