38198913 has 8 divisors (see below), whose sum is σ = 52574976. Its totient is φ = 24644400.

The previous prime is 38198903. The next prime is 38198917. The reversal of 38198913 is 31989183.

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 38198913 - 2⁹ = 38198401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38198917) 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, 205278 + ... + 205463.

It is an arithmetic number, because the mean of its divisors is an integer number (6571872).

Almost surely, 2^38198913 is an apocalyptic number.

It is an amenable number.

38198913 is a deficient number, since it is larger than the sum of its proper divisors (14376063).

38198913 is a wasteful number, since it uses less digits than its factorization.

38198913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410775.

The product of its digits is 46656, while the sum is 42.

The square root of 38198913 is about 6180.5269192845. The cubic root of 38198913 is about 336.7831346649.

The spelling of 38198913 in words is "thirty-eight million, one hundred ninety-eight thousand, nine hundred thirteen".