1197772032 has 72 divisors (see below), whose sum is σ = 3265657920. Its totient is φ = 389509120.

The previous prime is 1197772021. The next prime is 1197772049. The reversal of 1197772032 is 2302777911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12469 + ... + 50507.

It is an arithmetic number, because the mean of its divisors is an integer number (45356360).

Almost surely, 2^1197772032 is an apocalyptic number.

1197772032 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 1197772032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632828960).

1197772032 is an abundant number, since it is smaller than the sum of its proper divisors (2067885888).

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

1197772032 is an equidigital number, since it uses as much as digits as its factorization.

1197772032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38099 (or 38085 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 1197772032 is about 34608.8432629581. The cubic root of 1197772032 is about 1062.0005036155. Note that the first 3 decimals are identical.

The spelling of 1197772032 in words is "one billion, one hundred ninety-seven million, seven hundred seventy-two thousand, thirty-two".