121889304 has 24 divisors (see below), whose sum is σ = 330117060. Its totient is φ = 40629744.

The previous prime is 121889279. The next prime is 121889309. The reversal of 121889304 is 403988121.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121889309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 846382 + ... + 846525.

Almost surely, 2^121889304 is an apocalyptic number.

It is an amenable number.

121889304 is an abundant number, since it is smaller than the sum of its proper divisors (208227756).

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

121889304 is a wasteful number, since it uses less digits than its factorization.

121889304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692919 (or 1692912 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 121889304 is about 11040.3489075301. The cubic root of 121889304 is about 495.8175165509.

The spelling of 121889304 in words is "one hundred twenty-one million, eight hundred eighty-nine thousand, three hundred four".