38478253 has 4 divisors (see below), whose sum is σ = 41976288. Its totient is φ = 34980220.

The previous prime is 38478239. The next prime is 38478257. The reversal of 38478253 is 35287483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38478253 - 2⁵ = 38478221 is a prime.

It is a super-3 number, since 3×38478253³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749001 + ... + 1749022.

It is an arithmetic number, because the mean of its divisors is an integer number (10494072).

Almost surely, 2^38478253 is an apocalyptic number.

It is an amenable number.

38478253 is a deficient number, since it is larger than the sum of its proper divisors (3498035).

38478253 is a wasteful number, since it uses less digits than its factorization.

38478253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498034.

The product of its digits is 161280, while the sum is 40.

The square root of 38478253 is about 6203.0841522585. The cubic root of 38478253 is about 337.6020812382.

It can be divided in two parts, 3847 and 8253, that added together give a square (12100 = 110²).

The spelling of 38478253 in words is "thirty-eight million, four hundred seventy-eight thousand, two hundred fifty-three".