387226400450 has 18 divisors (see below), whose sum is σ = 720249289209. Its totient is φ = 154888800120.

The previous prime is 387226400443. The next prime is 387226400453. The reversal of 387226400450 is 54004622783.

It can be written as a sum of positive squares in 2 ways, for example, as 379481872441 + 7744528009 = 616021^2 + 88003^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=440015.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387226400398 and 387226400407.

It is not an unprimeable number, because it can be changed into a prime (387226400453) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4356149 + ... + 4444151.

Almost surely, 2^387226400450 is an apocalyptic number.

387226400450 is a deficient number, since it is larger than the sum of its proper divisors (333022888759).

387226400450 is an frugal number, since it uses more digits than its factorization.

387226400450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176018 (or 88010 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 387226400450 in words is "three hundred eighty-seven billion, two hundred twenty-six million, four hundred thousand, four hundred fifty".