1038354891 has 16 divisors (see below), whose sum is σ = 1582823424. Its totient is φ = 593132544.

The previous prime is 1038354887. The next prime is 1038354899. The reversal of 1038354891 is 1984538301.

It is not a de Polignac number, because 1038354891 - 2² = 1038354887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1038354899) 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, 65446 + ... + 79748.

It is an arithmetic number, because the mean of its divisors is an integer number (98926464).

Almost surely, 2^1038354891 is an apocalyptic number.

1038354891 is a deficient number, since it is larger than the sum of its proper divisors (544468533).

1038354891 is a wasteful number, since it uses less digits than its factorization.

1038354891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17770.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1038354891 is about 32223.5145662294. The cubic root of 1038354891 is about 1012.6249046944.

The spelling of 1038354891 in words is "one billion, thirty-eight million, three hundred fifty-four thousand, eight hundred ninety-one".