38911149 has 24 divisors (see below), whose sum is σ = 57707520. Its totient is φ = 25256448.

The previous prime is 38911139. The next prime is 38911189. The reversal of 38911149 is 94111983.

It is not a de Polignac number, because 38911149 - 2⁴ = 38911133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38911109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67149 + ... + 67725.

It is an arithmetic number, because the mean of its divisors is an integer number (2404480).

Almost surely, 2^38911149 is an apocalyptic number.

It is an amenable number.

38911149 is a deficient number, since it is larger than the sum of its proper divisors (18796371).

38911149 is a wasteful number, since it uses less digits than its factorization.

38911149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 766 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 38911149 is about 6237.8801687753. The cubic root of 38911149 is about 338.8634164059.

It can be divided in two parts, 38911 and 149, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 38911149 in words is "thirty-eight million, nine hundred eleven thousand, one hundred forty-nine".