1038445387 has 6 divisors (see below), whose sum is σ = 1207987548. Its totient is φ = 890096004.

The previous prime is 1038445363. The next prime is 1038445393. The reversal of 1038445387 is 7835448301.

It is not a de Polignac number, because 1038445387 - 2²⁷ = 904227659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1038445087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10596333 + ... + 10596430.

It is an arithmetic number, because the mean of its divisors is an integer number (201331258).

Almost surely, 2^1038445387 is an apocalyptic number.

1038445387 is a deficient number, since it is larger than the sum of its proper divisors (169542161).

1038445387 is an equidigital number, since it uses as much as digits as its factorization.

1038445387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21192777 (or 21192770 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 1038445387 is about 32224.9187275934. The cubic root of 1038445387 is about 1012.6543216892.

The spelling of 1038445387 in words is "one billion, thirty-eight million, four hundred forty-five thousand, three hundred eighty-seven".