38402555 has 8 divisors (see below), whose sum is σ = 46131792. Its totient is φ = 30689568.

The previous prime is 38402549. The next prime is 38402557. The reversal of 38402555 is 55520483.

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 38402555 - 2⁶ = 38402491 is a prime.

It is a super-3 number, since 3×38402555³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38402557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952 + ... + 8978.

It is an arithmetic number, because the mean of its divisors is an integer number (5766474).

Almost surely, 2^38402555 is an apocalyptic number.

38402555 is a deficient number, since it is larger than the sum of its proper divisors (7729237).

38402555 is a wasteful number, since it uses less digits than its factorization.

38402555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8125.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 38402555 is about 6196.9795061788. The cubic root of 38402555 is about 337.3805484911.

The spelling of 38402555 in words is "thirty-eight million, four hundred two thousand, five hundred fifty-five".