38649351 has 8 divisors (see below), whose sum is σ = 55496560. Its totient is φ = 23784192.

The previous prime is 38649319. The next prime is 38649353. The reversal of 38649351 is 15394683.

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

It is not a de Polignac number, because 38649351 - 2⁵ = 38649319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 991009 = 38649351 / (3 + 8 + 6 + 4 + 9 + 3 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38649353) 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, 495466 + ... + 495543.

It is an arithmetic number, because the mean of its divisors is an integer number (6937070).

Almost surely, 2^38649351 is an apocalyptic number.

38649351 is a deficient number, since it is larger than the sum of its proper divisors (16847209).

38649351 is a wasteful number, since it uses less digits than its factorization.

38649351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991025.

The product of its digits is 77760, while the sum is 39.

The square root of 38649351 is about 6216.8602204006. The cubic root of 38649351 is about 338.1017369363.

The spelling of 38649351 in words is "thirty-eight million, six hundred forty-nine thousand, three hundred fifty-one".