121842648 has 96 divisors (see below), whose sum is σ = 345446400. Its totient is φ = 38750400.

The previous prime is 121842631. The next prime is 121842653. The reversal of 121842648 is 846248121.

121842648 is a `hidden beast` number, since 1 + 2 + 1 + 8 + 4 + 2 + 648 = 666.

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

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175983 + ... + 176673.

It is an arithmetic number, because the mean of its divisors is an integer number (3598400).

Almost surely, 2^121842648 is an apocalyptic number.

121842648 is a gapful number since it is divisible by the number (18) 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 121842648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172723200).

121842648 is an abundant number, since it is smaller than the sum of its proper divisors (223603752).

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

121842648 is a wasteful number, since it uses less digits than its factorization.

121842648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 806 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 121842648 is about 11038.2357285936. The cubic root of 121842648 is about 495.7542465360.

The spelling of 121842648 in words is "one hundred twenty-one million, eight hundred forty-two thousand, six hundred forty-eight".