121945344 has 144 divisors (see below), whose sum is σ = 349769280. Its totient is φ = 37601280.

The previous prime is 121945339. The next prime is 121945367. The reversal of 121945344 is 443549121.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 890044 + ... + 890180.

Almost surely, 2^121945344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121945344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174884640).

121945344 is an abundant number, since it is smaller than the sum of its proper divisors (227823936).

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

121945344 is a wasteful number, since it uses less digits than its factorization.

121945344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 222 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 121945344 is about 11042.8865791513. The cubic root of 121945344 is about 495.8934908313.

The spelling of 121945344 in words is "one hundred twenty-one million, nine hundred forty-five thousand, three hundred forty-four".