1097323780 has 48 divisors (see below), whose sum is σ = 2635557120. Its totient is φ = 375942528.

The previous prime is 1097323757. The next prime is 1097323783. The reversal of 1097323780 is 873237901.

It is not an unprimeable number, because it can be changed into a prime (1097323783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282129 + ... + 285991.

It is an arithmetic number, because the mean of its divisors is an integer number (54907440).

Almost surely, 2^1097323780 is an apocalyptic number.

1097323780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097323780 is an abundant number, since it is smaller than the sum of its proper divisors (1538233340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097323780 is a wasteful number, since it uses less digits than its factorization.

1097323780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908 (or 5906 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1097323780 is about 33125.8777996901. The cubic root of 1097323780 is about 1031.4422814769.

The spelling of 1097323780 in words is "one billion, ninety-seven million, three hundred twenty-three thousand, seven hundred eighty".