121932432 has 80 divisors (see below), whose sum is σ = 370601280. Its totient is φ = 38251008.

The previous prime is 121932431. The next prime is 121932451. The reversal of 121932432 is 234239121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121932396 and 121932405.

It is not an unprimeable number, because it can be changed into a prime (121932431) 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, 958 + ... + 15645.

It is an arithmetic number, because the mean of its divisors is an integer number (4632516).

Almost surely, 2^121932432 is an apocalyptic number.

121932432 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 121932432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185300640).

121932432 is an abundant number, since it is smaller than the sum of its proper divisors (248668848).

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

121932432 is a wasteful number, since it uses less digits than its factorization.

121932432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16637 (or 16625 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 121932432 is about 11042.3019339266. The cubic root of 121932432 is about 495.8759879005.

The spelling of 121932432 in words is "one hundred twenty-one million, nine hundred thirty-two thousand, four hundred thirty-two".