38402198 has 8 divisors (see below), whose sum is σ = 57629880. Its totient is φ = 19192240.

The previous prime is 38402197. The next prime is 38402209. The reversal of 38402198 is 89120483.

It is a happy number.

38402198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×38402198² = 2949457622462408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38402197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5018 + ... + 10098.

It is an arithmetic number, because the mean of its divisors is an integer number (7203735).

Almost surely, 2^38402198 is an apocalyptic number.

38402198 is a deficient number, since it is larger than the sum of its proper divisors (19227682).

38402198 is a wasteful number, since it uses less digits than its factorization.

38402198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8862.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 38402198 is about 6196.9507017565. The cubic root of 38402198 is about 337.3795030291.

The spelling of 38402198 in words is "thirty-eight million, four hundred two thousand, one hundred ninety-eight".