38561456 has 20 divisors (see below), whose sum is σ = 75981000. Its totient is φ = 18953472.

The previous prime is 38561407. The next prime is 38561459. The reversal of 38561456 is 65416583.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38561459) 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, 19481 + ... + 21368.

It is an arithmetic number, because the mean of its divisors is an integer number (3799050).

Almost surely, 2^38561456 is an apocalyptic number.

It is an amenable number.

38561456 is a deficient number, since it is larger than the sum of its proper divisors (37419544).

38561456 is a wasteful number, since it uses less digits than its factorization.

38561456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40916 (or 40910 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 38561456 is about 6209.7871139033. The cubic root of 38561456 is about 337.8452426928.

The spelling of 38561456 in words is "thirty-eight million, five hundred sixty-one thousand, four hundred fifty-six".