38400120634305 has 32 divisors (see below), whose sum is σ = 63032223252096. Its totient is φ = 19956147807744.

The previous prime is 38400120634259. The next prime is 38400120634339. The reversal of 38400120634305 is 50343602100483.

It is not a de Polignac number, because 38400120634305 - 2¹⁷ = 38400120503233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211165762 + ... + 211347531.

It is an arithmetic number, because the mean of its divisors is an integer number (1969756976628).

Almost surely, 2^{38400120634305} is an apocalyptic number.

It is an amenable number.

38400120634305 is a deficient number, since it is larger than the sum of its proper divisors (24632102617791).

38400120634305 is a wasteful number, since it uses less digits than its factorization.

38400120634305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422513457.

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 38400120634305 its reverse (50343602100483), we get a palindrome (88743722734788).

The spelling of 38400120634305 in words is "thirty-eight trillion, four hundred billion, one hundred twenty million, six hundred thirty-four thousand, three hundred five".