38658144 has 48 divisors (see below), whose sum is σ = 115976448. Its totient is φ = 11044992.

The previous prime is 38658143. The next prime is 38658149. The reversal of 38658144 is 44185683.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38658143) 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, 28092 + ... + 29435.

It is an arithmetic number, because the mean of its divisors is an integer number (2416176).

Almost surely, 2^38658144 is an apocalyptic number.

It is an amenable number.

38658144 is an abundant number, since it is smaller than the sum of its proper divisors (77318304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38658144 is a wasteful number, since it uses less digits than its factorization.

38658144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57547 (or 57539 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 38658144 is about 6217.5673699607. The cubic root of 38658144 is about 338.1273751688.

The spelling of 38658144 in words is "thirty-eight million, six hundred fifty-eight thousand, one hundred forty-four".