1198939632 has 120 divisors (see below), whose sum is σ = 3514775040. Its totient is φ = 351542400.

The previous prime is 1198939627. The next prime is 1198939639. The reversal of 1198939632 is 2369398911.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198939639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176719 + ... + 183377.

It is an arithmetic number, because the mean of its divisors is an integer number (29289792).

Almost surely, 2^1198939632 is an apocalyptic number.

1198939632 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 1198939632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757387520).

1198939632 is an abundant number, since it is smaller than the sum of its proper divisors (2315835408).

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

1198939632 is a wasteful number, since it uses less digits than its factorization.

1198939632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6723 (or 6706 counting only the distinct ones).

The product of its digits is 629856, while the sum is 51.

The square root of 1198939632 is about 34625.7076750786. The cubic root of 1198939632 is about 1062.3454744041.

The spelling of 1198939632 in words is "one billion, one hundred ninety-eight million, nine hundred thirty-nine thousand, six hundred thirty-two".