38404120947 has 16 divisors (see below), whose sum is σ = 53671446528. Its totient is φ = 24379755840.

The previous prime is 38404120939. The next prime is 38404120961. The reversal of 38404120947 is 74902140483.

It is not a de Polignac number, because 38404120947 - 2³ = 38404120939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38404120899 and 38404120908.

It is not an unprimeable number, because it can be changed into a prime (38404122947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1232554 + ... + 1263327.

It is an arithmetic number, because the mean of its divisors is an integer number (3354465408).

Almost surely, 2^38404120947 is an apocalyptic number.

38404120947 is a deficient number, since it is larger than the sum of its proper divisors (15267325581).

38404120947 is a wasteful number, since it uses less digits than its factorization.

38404120947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496130.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 38404120947 in words is "thirty-eight billion, four hundred four million, one hundred twenty thousand, nine hundred forty-seven".