1038463921 has 16 divisors (see below), whose sum is σ = 1211407488. Its totient is φ = 879712000.

The previous prime is 1038463913. The next prime is 1038463957. The reversal of 1038463921 is 1293648301.

It is a cyclic number.

It is not a de Polignac number, because 1038463921 - 2³ = 1038463913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1038463421) 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 15 ways as a sum of consecutive naturals, for example, 8605 + ... + 46378.

It is an arithmetic number, because the mean of its divisors is an integer number (75712968).

Almost surely, 2^1038463921 is an apocalyptic number.

1038463921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1038463921 is a deficient number, since it is larger than the sum of its proper divisors (172943567).

1038463921 is a wasteful number, since it uses less digits than its factorization.

1038463921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55112.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1038463921 is about 32225.2062987966. The cubic root of 1038463921 is about 1012.6603462152.

It can be divided in two parts, 10384 and 63921, that added together give a triangular number (74305 = T₃₈₅).

The spelling of 1038463921 in words is "one billion, thirty-eight million, four hundred sixty-three thousand, nine hundred twenty-one".