1109322972 has 48 divisors (see below), whose sum is σ = 2968806400. Its totient is φ = 357845040.

The previous prime is 1109322931. The next prime is 1109322979. The reversal of 1109322972 is 2792239011.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109322979) 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, 162322 + ... + 169017.

Almost surely, 2^1109322972 is an apocalyptic number.

1109322972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1109322972 is an abundant number, since it is smaller than the sum of its proper divisors (1859483428).

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

1109322972 is a wasteful number, since it uses less digits than its factorization.

1109322972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331383 (or 331375 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1109322972 is about 33306.5004466095. The cubic root of 1109322972 is about 1035.1882539316.

The spelling of 1109322972 in words is "one billion, one hundred nine million, three hundred twenty-two thousand, nine hundred seventy-two".