38897492 has 12 divisors (see below), whose sum is σ = 69029856. Its totient is φ = 19174680.

The previous prime is 38897491. The next prime is 38897519. The reversal of 38897492 is 29479883.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 38897492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38897491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68198 + ... + 68765.

It is an arithmetic number, because the mean of its divisors is an integer number (5752488).

Almost surely, 2^38897492 is an apocalyptic number.

It is an amenable number.

38897492 is a deficient number, since it is larger than the sum of its proper divisors (30132364).

38897492 is a wasteful number, since it uses less digits than its factorization.

38897492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137038 (or 137036 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 38897492 is about 6236.7853899264. The cubic root of 38897492 is about 338.8237671080.

The spelling of 38897492 in words is "thirty-eight million, eight hundred ninety-seven thousand, four hundred ninety-two".