1097043638 has 16 divisors (see below), whose sum is σ = 1682311680. Its totient is φ = 536297256.

The previous prime is 1097043631. The next prime is 1097043707. The reversal of 1097043638 is 8363407901.

It is a junction number, because it is equal to n+sod(n) for n = 1097043595 and 1097043604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097043631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94433 + ... + 105411.

It is an arithmetic number, because the mean of its divisors is an integer number (105144480).

Almost surely, 2^1097043638 is an apocalyptic number.

1097043638 is a deficient number, since it is larger than the sum of its proper divisors (585268042).

1097043638 is a wasteful number, since it uses less digits than its factorization.

1097043638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12091.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1097043638 is about 33121.6490833412. The cubic root of 1097043638 is about 1031.3544997599.

The spelling of 1097043638 in words is "one billion, ninety-seven million, forty-three thousand, six hundred thirty-eight".