1097372232 has 160 divisors (see below), whose sum is σ = 3362724000. Its totient is φ = 331578720.

The previous prime is 1097372231. The next prime is 1097372239. The reversal of 1097372232 is 2322737901.

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

It is not an unprimeable number, because it can be changed into a prime (1097372231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3162283 + ... + 3162629.

It is an arithmetic number, because the mean of its divisors is an integer number (21017025).

Almost surely, 2^1097372232 is an apocalyptic number.

1097372232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097372232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681362000).

1097372232 is an abundant number, since it is smaller than the sum of its proper divisors (2265351768).

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

1097372232 is an equidigital number, since it uses as much as digits as its factorization.

1097372232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1097372232 is about 33126.6091231807. The cubic root of 1097372232 is about 1031.4574622609.

The spelling of 1097372232 in words is "one billion, ninety-seven million, three hundred seventy-two thousand, two hundred thirty-two".