38403648281284 has 96 divisors (see below), whose sum is σ = 81056215457280. Its totient is φ = 15686450841600.

The previous prime is 38403648281267. The next prime is 38403648281287. The reversal of 38403648281284 is 48218284630483.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38403648281287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9089872 + ... + 12626680.

It is an arithmetic number, because the mean of its divisors is an integer number (844335577680).

Almost surely, 2^{38403648281284} is an apocalyptic number.

It is an amenable number.

38403648281284 is an abundant number, since it is smaller than the sum of its proper divisors (42652567175996).

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

38403648281284 is a wasteful number, since it uses less digits than its factorization.

38403648281284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537341 (or 3537339 counting only the distinct ones).

The product of its (nonzero) digits is 56623104, while the sum is 61.

The spelling of 38403648281284 in words is "thirty-eight trillion, four hundred three billion, six hundred forty-eight million, two hundred eighty-one thousand, two hundred eighty-four".